It’s refreshing that you’re fixin’ to rebuild & refresh this engine instead of swapping it out for a V-8. It’s amazing how heavy-duty & durable this engine is. It was built for heavy use & made to last. I can’t wait to see the finished product.
So cool - 1972 auto repair in my HS, no one wanted this project engine - so me (the new guy) and teacher tore it down and o/h it. The inboard plugs were unique. It had a blown head gasket, but still ran on 3 cylinders. Was a beast to restab the clutch pressure plate. TY for great memories. My test drive after o/h took me 3 hours out of class that day - lol. Got an A in that class - it led me to be an electro-mech engineering designer, slide rule drafting, and then cadcam future. Thank you Vernon Theodford.
That engine looks to be build crazy strong. It looks like it shares some lineage with the Chevy 348/409. I wouldn't spend a lot of time and money on that distributor. The old breaker points really work very well if you set the gap correctly, which is very easy since the cap has the window to adjust the dwell with dwell meter.
They made these all the way up to I believe a 702 in³ displacement! They even made several variants that were known as the Toro flow yeah squirrel flow. They were actually for the time, excellent as far as fuel economy goes for for a V6 diesel engine. Some fishbowl and GMC newlook models had Toro flow engines in them, 6 and some 8 cylinder Turbo charged, they're a little hard to find At least from what I can tell.
@@isfeldt34 The military had turbocharged Toro Flows in '65 and'66 bus/ambulance combination Superior bodied buses. Somewhere along the way they removed the turbo's first and in the early 70's entered into a contract with Cummins to repower with triple nickle V8's. The motor pool I worked in had two of the converted buses in 1974. There were also marine turbocharged Toro Flows. Very rare today but I have seen them turn up on ebay after a boat repower. I still have one DH478 Toro Flow.
I owned a 1963 GMC CarryAll factory 4wd 305V6.4 speed trans. I agree this motor is a real stump puller torquey engine. One interesting item is that my GMC 305 V6 had factory 'plaid' valve covers. As I understand, engineers pulled engines off the line to be modified and blueprinted. The plaid valve covers were to let a future tech know this engine has been modified. You also mentioned the Stromberg WW carb. A fine heavy duty truck.
We had a 66 grain truck on the farm with the v6 in it. When we were hauling silage, once I got her out of the field and opened up I could outrun any of the other trucks. For one summer when I didn't have a car it was my everyday vehicle, mainly school and fishing. Over the years the v6 was replaced with a 454, bro in law still has it. Thanks for the memories.
Hemmings Classic Car magazine did an article on this engine in the past year. Your video helps to better flesh out the details on it. Looking forward to your progress on it, Kyle!
I had the GMC 305 in my hoopie freight truck hauling firewood. Mine had a 5 speed tranny in front of a two speed 22,000 pound rear axle. That motor pulled way above its displacement. Reliable too. Loaded I would get 4-5 mpg.
Hey Saabkyle, I know you're a GM guy but have you heard of the Ford 300 inline 6. It's about the same size as the 305 V6 and was a purpose built truck motor as well. It was introduced in 1965 and lasted all the way until 1996. It had one of the longest production runs of any American made engine.
I'm a Ford & Mopar guy too, and you're right that the L-6 300 was incredibly durable, and surprised many people with their 'power'.....which was really torque. That same comment was made about Mopar Slant 6s in full size Plymouths & Dodges, as passengers were surprised to learn they were in a 6-cylinder car, not an 8.
Although people say about the other model 6s or the newer replacements? I have been a mechanic since 68 but I've always been interested in rebuilding or modifying or performance the underdog motor be a 6 or 8 or the ugliest thing on the planet I'm not interested in new modern replacements for the in thing I always like to use my brain and see what I can do on the underdog engine as in this 3005 it would be interesting to blueprint it modify it with a little performance somehow but make it double its mileage that's really using your intellect
Love ur videos bro, can't wait for another video of the 1996 Chevy Silverado, my favorite thing u have done to it is the new chime and removed the old buzzer that was super annoying. It's crazy that it has the original engine from 1962 😲
@@saabkyle04 awesome, I love detailing videos. It's amazing seeing the before and after. What type of soap and equipment do u use? I'm curious to know since I detail my family's cars and want to know so next summer, I know what's an excellent product to use. I usually use Magures or armorall. I also follow Chris fix steps by using 2 buckets. Hopefully I can get a power washer so I can use a cannon. Thanks bud, have an amazing weekend and keep up to good work on restoring these classic cars 😎
By the way there's a video of a guy from Arizona ( I think) from several years back where he completely rebuilds one those v6s you should watch that on TH-cam he goes into great detail on clearances etc and how to properly replace the rear engine SEALS!! I THINK IT'S"MY VINTAGE IRON"...
That motor was a bullet proof motor it seems. Other than added weight from all the cast iron. Shame on GM for getting rid of it. Stay safe and be well. Thanks for sharing
If I remember right, these engines were supposed to be Diesel engines, but were instead gassers. I could be wrong, but it would explain why they were so stout and why the spark plugs are mounted inboard because that’s where the fuel injectors would go.
There is a 637ci industrial V8 based on this design, and was available in both gas and diesel versions. If I remember right, the gas ones were red, and the diesels green.
Those V-6 motors were designed and built to run 500,000 miles. They made four versions of that motor with different cubic inches. Thete was the 305, 351, 402 and a 478. They also built a V-12 at 702 cid. One solid cast block, with four individual heads. None of these had huge horsepower, but i believe the torque rating was definitely underrated. I pulled a 66 Chrysler Inperial that was on its frame 200 feet at just over an idle. These trucks were beasts!!.. Not the best on gas, but will run forever.
Bought a 63 GMC out of Texas off Ebay 10 years ago. I still Drive it. I bought a Billet Aluminum distributer, so I don't have to mess with points. Fleetside, for sale if anyone is interested. Yes with original 305 V6
I have a 67 Chevy Stepside with the 305E. That was the final, most "powerful" version. I saw the Holly 2 BBL, probably a 350 cm. The Holly 500 will also fit but probably overkill. That carb was really the only upgrade that was available. Huge difference over the Stromberg 1 BBL.
those engines were design by Hercules engine company for GMC division and yes there's a V12 version of these engines called the twin six 702 cu-in for the big trucks
And 351, 401, and 478 V6s, plus a 637 V8 (both gas and diesel ones). Earlier, GMC had 302, 503, and 707(ach du lieber! 😂) gas inline 6s. That's in addition to the 2 stroke diesels now known as Detroit Diesels. GMC was bonkers.
I had one of these with a power glide, not a real good combination. They will last forever but don’t expect good fuel mileage. They also made these in a 702 cubic inch V12.
These are Industrial beasts. We had one of the bigger ones actually powering a 5000 gallon fire tender through a 5 speed auto. There were some hills it just could not pull being so overloaded. It would pump water like crazy in 5th gear through the pto for endless hours as long as you fed it gas.
Thanks for posting, this is a fascinating engine family. I think GMC introduced this V-6 family in 1959, as you said they were strictly truck engines, meaning they hit max torque at an rpm not really much higher than idle - exactly what a truck needs. I believe they were nicknamed the 'Hercules' series because of their durability. Coincidentally, Ford introduced a truck-only series of engines called the, "Super Duty" in 1958 - V-8s of 401; 477; and 534 cubic inches. I think the 534 weighed almost 1,100lbs.....they again were only for Ford trucks, up to the F-900s for tractor-trailers. Those engines had no business being in passenger cars, although at least one moron put a 534 in a 1929 'hot-rod'.
the last video on the 33 pontiac was amazing, the horn was epic, thanks for filming a review on that thing. I want to wish you luck on your new bussiness. Maybe you should create a second channel for the bussiness. When is the s10 coming back, when is the chevelle coming back, and when is the 240sx coming. You should film a video on the 86 c10. Instead of restoring it just get it running and bring it back from the dead again and sell it.
That 33 pontiac was a hell of a review, try to restore a buick grand national, and a oldsmoblie cutlass of the grand national gen as well, maybe restore a classic mercedes, and maybe restore a classic heavy duty truck as well. It would be great to restore a car from the 20s or 30s as well
as soon as you finish the chevelle, the 240sx, and the s10, I would sell them at barrett jackson or mecum auto auctions. You would make great money by selling them at auctions
I will never create a second channel, this is and will always be my channel. I don't know when they're coming back, too many things going on. The C10 is long gone. Please stop with the constant suggestions, it's super overwhelming dude.
I used to work for a nursery that had in 1962 purchased this exact truck, except it was bright red. It rarely left the nursery property and in the 80s still had less than 10,000 miles and although the inside of the bed was a bit beat up everything else was in pristine shape, for years I would see it when driving past, the nursery has now been sold, I wonder what ever became of that truck.
owned one they are torque monsters. mine was a 3 speed manual and you could start out in 3rd gear if you feathered the clutch a little, 2nd gear all day long.
You could probably get Colt or Bullet to make a cam core and grind something modern for it. All that iron needs a turbo, practically begging for it. The pistons are 4 ring if I remember correctly. 6-8 psi of boost would make it interesting.
When I was ten years old My dad had a 68 gmc with that motor in it. It was a beast. It had a three speed with a granny gear in it. It was the first manual transmission I drove.
He's been around a long time, 10+ years. I'd even go as far to say he is one of the original car channels on TH-cam from back in the day. Pretty much any modern car you can think of he has probably done a video on it.
If you decide NOT TO DO THE HEI CONVERSION,,I suggest you put a PERTRONIX IGNITOR KIT IN THE DISTRIBUTOR it changes it over to electronic ignition!! And if it goes out, you can replace the points and condenser back into it to get you running till you can replace the unit( ignitor) IF I GO BACK WITH ANOTHER BB V6 I'LL GO THE IGNITOR ROUTE ON MINE!! Also I think some transmission mounts would work for motor mounts! Mine need revulcanizing too but I think I'm going to try the tranny mount! Probably would need to be shimmed but I think it would work!
What a beast of a motor, they went for ALL the reliability back then. Sadly fuel economy will be bad if your motor weighs a ton and the water- and oil- pump specs rival a firetrucks pump :) This engine could be great for other applications too: tractors, boats, industrial stuff... A modern version of this would be the new Ford 7.3 gas motor or a V6- version of that.
The engineering that went into engines back then was pretty nuts; consider as well that in the same era, Buick was heavily invested in their 215 ci V8 project which was, unusually, aluminum and after a few years received turbocharging.
The school district where I attended elementary through High School bought nothing but GMC busses from the early 1960's through the mid 1970's before switching over to Internationals. The 60's busses were powered by the GMC 305 V6 and the 70's busses were powered by the GMC 351 V6.....They were not the most powerful of engines but they lasted a long time in service.
That’s not a roller timing chain but looks very wide and stout. Other videos on this engine do show dual roller setup. Sure looks like a diesel that they ran as a gas engine. A beast for sure.
GMC rather easily converted some of these into a sister line of diesels, most notably the largest-ever member of this V-6 family, the 478 cubic inch. The diesel line presumably needed very little reinforcement as you implied. The diesel family was named the, "Toro-Flow", but some mechanics called them the, "Terrible Flow".
I have a 66 GMC c1000 it had the 305c "crate" engine From early 70s,was originally supposed to have the 305e, it had been swapped before I got it,, I noticed yours don't have the double roller timing chain but a HEAVY DUTY STANDARD CHAIN,, THAT'S UNUSUAL,, MOST HAVE A TRUE DOUBLE ROLLER CHAIN!! MINE RAN SWEET FOR MANY YEARS until I made a bad mistake of flushing the engine and stopping up the oil screen due to that high volume oil pump!! SPUN NUMBER 4 ROD BEARING EXTREMELY BAD!! I'm debating on whether to try and rebuild it or find another one and use mine for spare parts!! Now I do have a set of the"MAGNUM HEADS" that came on the 351-401 I'll probably sell those. I have a friend who has a 305b outta a bigger truck it's the same as a 305c except for the intake manifold and water pump housing,, I might get it and put back in my truck? That humongous thing was a pain to get outta the truck!! I've thought about just going back with a 292 straight 6 or a small block Chevy,, but I always LOVED THAT V6! LOTSA TORQUE AND WOULD ROLL ON THE INTERSTATE AT ONLY ABOUT 1500 RPM( MY REAR END IS 3:08) AT 80MPH! WITH PLENTY OF PEDDLE TO GO!! and it's a great conversation piece too,, especially at AUTOZONE.
@Kyle, Appreciate your video! Have my G-father’s ‘63 3/4t, 4x4, stepside, 4 speed w/ the 305E V-6, all original (evergreen paint), to include the dear ole Stromburg 2 barrel carb. It was really a farm implement on our land down in S. Texas. Winch on the front and a PTO out the back. I no longer have the split-rim wheels that GMC put on 3/4t, and up, trucks at the time b/c they’re now outlawed in Tx & Ok where I now reside. Have the big rear window & bumper as well. Best part is we have 77k original miles on it. Would like to see more of your rebuild videos on this engine. In what state do you live?
We bought a 1972 GMC skoolie that has a v6 big block. I'm the wife and am currently doing the mechanical stuff (and learning) while hubby is at work. I feel so alone in getting this thing going good as apparently parts are hard to find. Just took carburetor (original) off to clean as it was spitting fuel from the top from debris from critters making a nest on top of carb. there is evidence of debris that has gone past the carb into the top inside engine block. I'm nervous that debris is further down into engine requiring work to clean inside the engine which is way out of my league although I have time on my hands to learn if need be. Info has been super hard to find in helping me learn about the engine so I was relieved to find this video. Any advice would be so much appreciated as I feel like I'm opening a can of worms 😂.
I wonder if you were to put an electric fan on it, if you would even need to kick it on when driving over 20-25 mph. Bet you had to block off the grill in winter to get the cab warm. Hell, if it really is moving 300+GPM through the cooling system, it probably would stay cool so long as a gentle breeze is moving over the truck.
Good job 👏. I didn't know that GMC V6 engines where that heavy that is a wow moment for that era of engines for sure. Here something you might look into find a turbo for that engine a small amount of Boost probably wouldn't hurt that engine the way it was built. Anyway even if you don't do any modes to the engine you have some real history in your hands. Ps you might want to have some harden seats put into the heads because there is no lead for the engine or see if there is a fuel Supplement for the engine and again thanks for sharing a classic with everyone Ray in Idaho
I have a 1964 GMC 3500 1ton with the 305 V6 ! It starts,don't leak,runs strong and is a complete mystery to me. I would love to swap in something more familiar a straight 6 small block Chevy all of which parts are readily available,, do you know since I have the stock transmission with stick on the floor(factory) I would need an adapter or can I just bolt it up? Any help would be greatly appreciated thank you...
Could you share some of your research web sites and notes? I found one of the GMC V6 motors in an old truck and thinking of making an offer on the motor to go in one of my Willys Truck projects. The torque you mentioned is appealing and the gallons per min of coolant flow would make it a perfect match for an old willys truck
A couple of things. That timing chain is not a roller timing chain. It is a morse style. Some of the 305's and 351's had single roller timing chains. Once you got up to the 401's it was a gear train that drove the cam.
Someone's selling a 305 with a 4 speed says it was running out of a 67 C10 for 300, I asked 200 and he said 250, should I take it. I'm not a real mechanic but I want to get into doing cleaning engines up and reselling. I'd be capable of doing valve cover, intake and oil pan gaskets, and painting them, spark plugs and oil. Would I make money of off that?
@@jamesmoore716 Probably not worth it for resale. Depending on the miles (which a prospective buyer is going to ask) beyond the things you mention, check the valve clearance AND it may need a timing chain as well. Run it record oil pressure and then do a compression test too. The more you know about it, the more comfortable a prospective purchaser may feel about buying it. If a purchaser can see it run, that helps too. The kind of purchaser that might pay you enough to make a few dollars is going to be someone who desperately needs one. These engines are known to be thirsty and as such,many just replace them with a small block Chevy. The 4 speed transmissions (SM420) are popular in some circles (rock crawlers) and in the right venue might bring fair money as they are all but impossible to find now.
@@jamesmoore716 You can run it on the ground. I've run them on the ground and on engine stands. The engine should be warm for the compression test and to adjust the valves anyway. The trans is popular with rock crawlers. If there are any in your area, it might bring good money. If it has to be shipped, because of shipping costs, many may not be interested. I would only buy it if you want it or have a use for it, not with the idea of making money with it.
This is a cool truck looks just like the one I rode in in 2018 same style gmc a good friend of my family's picked up the truck in the junkyard fixed it up and put in a 350 v8 it was a cool experience riding in a classic truck this one looking like a 60s model not really sure cool truck all the way way around
It’s refreshing that you’re fixin’ to rebuild & refresh this engine instead of swapping it out for a V-8. It’s amazing how heavy-duty & durable this engine is. It was built for heavy use & made to last. I can’t wait to see the finished product.
That aged like milk.
So cool - 1972 auto repair in my HS, no one wanted this project engine - so me (the new guy) and teacher tore it down and o/h it. The inboard plugs were unique. It had a blown head gasket, but still ran on 3 cylinders. Was a beast to restab the clutch pressure plate. TY for great memories. My test drive after o/h took me 3 hours out of class that day - lol. Got an A in that class - it led me to be an electro-mech engineering designer, slide rule drafting, and then cadcam future. Thank you Vernon Theodford.
That engine looks to be build crazy strong. It looks like it shares some lineage with the Chevy 348/409. I wouldn't spend a lot of time and money on that distributor. The old breaker points really work very well if you set the gap correctly, which is very easy since the cap has the window to adjust the dwell with dwell meter.
Yes sir, I look forward to learning more about how to do that. It's super cool!
Doest share anything with the 348/409, I get this all the time at car shows
They made these all the way up to I believe a 702 in³ displacement! They even made several variants that were known as the Toro flow yeah squirrel flow. They were actually for the time, excellent as far as fuel economy goes for for a V6 diesel engine. Some fishbowl and GMC newlook models had Toro flow engines in them, 6 and some 8 cylinder Turbo charged, they're a little hard to find At least from what I can tell.
@@isfeldt34 The military had turbocharged Toro Flows in '65 and'66 bus/ambulance combination Superior bodied buses. Somewhere along the way they removed the turbo's first and in the early 70's entered into a contract with Cummins to repower with triple nickle V8's. The motor pool I worked in had two of the converted buses in 1974.
There were also marine turbocharged Toro Flows. Very rare today but I have seen them turn up on ebay after a boat repower. I still have one DH478 Toro Flow.
I had one of these and the distributor did not have a window.
I owned a 1963 GMC CarryAll factory 4wd 305V6.4 speed trans. I agree this motor is a real stump puller torquey engine. One interesting item is that my GMC 305 V6 had factory 'plaid' valve covers. As I understand, engineers pulled engines off the line to be modified and blueprinted. The plaid valve covers were to let a future tech know this engine has been modified. You also mentioned the Stromberg WW carb. A fine heavy duty truck.
We had a 66 grain truck on the farm with the v6 in it. When we were hauling silage, once I got her out of the field and opened up I could outrun any of the other trucks. For one summer when I didn't have a car it was my everyday vehicle, mainly school and fishing. Over the years the v6 was replaced with a 454, bro in law still has it.
Thanks for the memories.
Those engines are just super cool. Can't get enough of them
All these years I have always thought these should have been the basis of the GM Diesel in the 80's. Imagine the torque from one of those.
it was the basis of the diesels of the 60's
Hemmings Classic Car magazine did an article on this engine in the past year. Your video helps to better flesh out the details on it. Looking forward to your progress on it, Kyle!
I had the GMC 305 in my hoopie freight truck hauling firewood. Mine had a 5 speed tranny in front of a two speed 22,000 pound rear axle. That motor pulled way above its displacement. Reliable too. Loaded I would get 4-5 mpg.
This is one of your best projects Kyle. Love big sixes.
Hey Saabkyle, I know you're a GM guy but have you heard of the Ford 300 inline 6. It's about the same size as the 305 V6 and was a purpose built truck motor as well. It was introduced in 1965 and lasted all the way until 1996. It had one of the longest production runs of any American made engine.
I'm a Ford & Mopar guy too, and you're right that the L-6 300 was incredibly durable, and surprised many people with their 'power'.....which was really torque.
That same comment was made about Mopar Slant 6s in full size Plymouths & Dodges, as passengers were surprised to learn they were in a 6-cylinder car, not an 8.
Although people say about the other model 6s or the newer replacements? I have been a mechanic since 68 but I've always been interested in rebuilding or modifying or performance the underdog motor be a 6 or 8 or the ugliest thing on the planet I'm not interested in new modern replacements for the in thing I always like to use my brain and see what I can do on the underdog engine as in this 3005 it would be interesting to blueprint it modify it with a little performance somehow but make it double its mileage that's really using your intellect
Commenting for support!
Love ur videos bro, can't wait for another video of the 1996 Chevy Silverado, my favorite thing u have done to it is the new chime and removed the old buzzer that was super annoying. It's crazy that it has the original engine from 1962 😲
Working on a detailing video on that truck at the moment!
@@saabkyle04 awesome, I love detailing videos. It's amazing seeing the before and after. What type of soap and equipment do u use? I'm curious to know since I detail my family's cars and want to know so next summer, I know what's an excellent product to use. I usually use Magures or armorall. I also follow Chris fix steps by using 2 buckets. Hopefully I can get a power washer so I can use a cannon. Thanks bud, have an amazing weekend and keep up to good work on restoring these classic cars 😎
By the way there's a video of a guy from Arizona ( I think) from several years back where he completely rebuilds one those v6s you should watch that on TH-cam he goes into great detail on clearances etc and how to properly replace the rear engine SEALS!! I THINK IT'S"MY VINTAGE IRON"...
One of my absolute GMC and Chevy body styles. Such beautys.
That motor was a bullet proof motor it seems. Other than added weight from all the cast iron. Shame on GM for getting rid of it. Stay safe and be well. Thanks for sharing
If I remember right, these engines were supposed to be Diesel engines, but were instead gassers. I could be wrong, but it would explain why they were so stout and why the spark plugs are mounted inboard because that’s where the fuel injectors would go.
There is a 637ci industrial V8 based on this design, and was available in both gas and diesel versions. If I remember right, the gas ones were red, and the diesels green.
Or the glow plugs.
Those V-6 motors were designed and built to run 500,000 miles. They made four versions of that motor with different cubic inches. Thete was the 305, 351, 402 and a 478. They also built a V-12 at 702 cid. One solid cast block, with four individual heads. None of these had huge horsepower, but i believe the torque rating was definitely underrated. I pulled a 66 Chrysler Inperial that was on its frame 200 feet at just over an idle. These trucks were beasts!!.. Not the best on gas, but will run forever.
Bought a 63 GMC out of Texas off Ebay 10 years ago. I still Drive it. I bought a Billet Aluminum distributer, so I don't have to mess with points. Fleetside, for sale if anyone is interested. Yes with original 305 V6
I have a 67 Chevy Stepside with the 305E. That was the final, most "powerful" version. I saw the Holly 2 BBL, probably a 350 cm. The Holly 500 will also fit but probably overkill. That carb was really the only upgrade that was available. Huge difference over the Stromberg 1 BBL.
Oh thanks Kyle, now TH-cam is recommending videos to me with the 401 V6 and 478 V6. There goes another hour or two staring at my phone…
those engines were design by Hercules engine company for GMC division and yes there's a V12 version of these engines called the twin six 702 cu-in for the big trucks
And 351, 401, and 478 V6s, plus a 637 V8 (both gas and diesel ones). Earlier, GMC had 302, 503, and 707(ach du lieber! 😂) gas inline 6s. That's in addition to the 2 stroke diesels now known as Detroit Diesels. GMC was bonkers.
A fella can't help but notice quite a few projects going on in the background in this video. Can't wait for a peak at those!! Thanks Kyle!
I had one of these with a power glide, not a real good combination. They will last forever but don’t expect good fuel mileage. They also made these in a 702 cubic inch V12.
how bad? did you atleast get teens?
In changing to a 3.8 HEI dizzy, higher compression, ported exhaust ports, and Motorcraft 1.21 2100 carb really woke up my 305.
I'm so glad to find this video. I just bought a 1965 k1000, your video is going to help me so much
These are Industrial beasts. We had one of the bigger ones actually powering a 5000 gallon fire tender through a 5 speed auto. There were some hills it just could not pull being so overloaded. It would pump water like crazy in 5th gear through the pto for endless hours as long as you fed it gas.
I would love to see some old school performance tricks to get these amazing motors
Thanks for posting, this is a fascinating engine family. I think GMC introduced this V-6 family in 1959, as you said they were strictly truck engines, meaning they hit max torque at an rpm not really much higher than idle - exactly what a truck needs. I believe they were nicknamed the 'Hercules' series because of their durability.
Coincidentally, Ford introduced a truck-only series of engines called the, "Super Duty" in 1958 - V-8s of 401; 477; and 534 cubic inches.
I think the 534 weighed almost 1,100lbs.....they again were only for Ford trucks, up to the F-900s for tractor-trailers. Those engines had no business being in passenger cars, although at least one moron put a 534 in a 1929 'hot-rod'.
That trucks sounds amazing wish Kyle make a video about what sounds better the 62 gmc vs the lovely 1996 k1500 with true duals va the rb25 240
the last video on the 33 pontiac was amazing, the horn was epic, thanks for filming a review on that thing. I want to wish you luck on your new bussiness. Maybe you should create a second channel for the bussiness. When is the s10 coming back, when is the chevelle coming back, and when is the 240sx coming. You should film a video on the 86 c10. Instead of restoring it just get it running and bring it back from the dead again and sell it.
Maybe buy a classic mopar and a classic for to restore as well. do more cold start videos please in the winter time
That 33 pontiac was a hell of a review, try to restore a buick grand national, and a oldsmoblie cutlass of the grand national gen as well, maybe restore a classic mercedes, and maybe restore a classic heavy duty truck as well. It would be great to restore a car from the 20s or 30s as well
as soon as you finish the chevelle, the 240sx, and the s10, I would sell them at barrett jackson or mecum auto auctions. You would make great money by selling them at auctions
I will never create a second channel, this is and will always be my channel. I don't know when they're coming back, too many things going on. The C10 is long gone. Please stop with the constant suggestions, it's super overwhelming dude.
@@saabkyle04 hi
I used to work for a nursery that had in 1962 purchased this exact truck, except it was bright red. It rarely left the nursery property and in the 80s still had less than 10,000 miles and although the inside of the bed was a bit beat up everything else was in pristine shape, for years I would see it when driving past, the nursery has now been sold, I wonder what ever became of that truck.
If you want a little more power you can have the camshaft reground for those V6 engines.
Love your project stuff Kyle. Forget about the reviews as far as I'm concerned. Bring on the s10!!
Fascinating engine!
owned one they are torque monsters. mine was a 3 speed manual and you could start out in 3rd gear if you feathered the clutch a little, 2nd gear all day long.
My father had a truck like that in the early 60s. Great old truck.
The bigger V6 engines had a timing gear in place of the chain which were the 401 and 478.
You could probably get Colt or Bullet to make a cam core and grind something modern for it.
All that iron needs a turbo, practically begging for it.
The pistons are 4 ring if I remember correctly.
6-8 psi of boost would make it interesting.
Absolute best I have ever seen I love the 305
Oh yeah, picking up a 1962 in July.
The heft reminds me of my brothers old IH Scout. He attempted to pull the motor and it was so heavy it taco'd his engine crane XD
When I was ten years old My dad had a 68 gmc with that motor in it. It was a beast. It had a three speed with a granny gear in it. It was the first manual transmission I drove.
Same here. If I remember it got about 8 or 9 mpg…..I took my drivers test in it. 3 speed on the column.
This is the first time I've heard of you. 1.29M subs?? That's more than Vice Grip Garage! I wouldn't expect that from anything named "Saab..." 😂.
He's been around a long time, 10+ years. I'd even go as far to say he is one of the original car channels on TH-cam from back in the day. Pretty much any modern car you can think of he has probably done a video on it.
If you decide NOT TO DO THE HEI CONVERSION,,I suggest you put a PERTRONIX IGNITOR KIT IN THE DISTRIBUTOR it changes it over to electronic ignition!! And if it goes out, you can replace the points and condenser back into it to get you running till you can replace the unit( ignitor) IF I GO BACK WITH ANOTHER BB V6 I'LL GO THE IGNITOR ROUTE ON MINE!! Also I think some transmission mounts would work for motor mounts! Mine need revulcanizing too but I think I'm going to try the tranny mount! Probably would need to be shimmed but I think it would work!
That’s a cool looking motor
I’ll be needing those links for the engine stand and hoist
What a beast of a motor, they went for ALL the reliability back then. Sadly fuel economy will be bad if your motor weighs a ton and the water- and oil- pump specs rival a firetrucks pump :)
This engine could be great for other applications too: tractors, boats, industrial stuff...
A modern version of this would be the new Ford 7.3 gas motor or a V6- version of that.
The engineering that went into engines back then was pretty nuts; consider as well that in the same era, Buick was heavily invested in their 215 ci V8 project which was, unusually, aluminum and after a few years received turbocharging.
This big block on a GMC Big block V6 sounds awesome
I've only seen one of them in my life time , and that was in the Yukon in the 70's , there a work horse .
Holy cow that's the SMALLEST engine in that model line?
Yes.
The school district where I attended elementary through High School bought nothing but GMC busses from the early 1960's through the mid 1970's before switching over to Internationals.
The 60's busses were powered by the GMC 305 V6 and the 70's busses were powered by the GMC 351 V6.....They were not the most powerful of engines but they lasted a long time in service.
That’s not a roller timing chain but looks very wide and stout. Other videos on this engine do show dual roller setup. Sure looks like a diesel that they ran as a gas engine. A beast for sure.
GMC rather easily converted some of these into a sister line of diesels, most notably the largest-ever member of this V-6 family, the 478 cubic inch.
The diesel line presumably needed very little reinforcement as you implied. The diesel family was named the, "Toro-Flow", but some mechanics called them the, "Terrible Flow".
That's a quality engine.Good job.
You can use trans mounts from mid 60s mustang for the motor mounts unless you're going for originality
This guy is like the cousin of Junkyard Digs.
You can modify the intake. There is also a 478v6
479
I have a 66 GMC c1000 it had the 305c "crate" engine From early 70s,was originally supposed to have the 305e, it had been swapped before I got it,, I noticed yours don't have the double roller timing chain but a HEAVY DUTY STANDARD CHAIN,, THAT'S UNUSUAL,, MOST HAVE A TRUE DOUBLE ROLLER CHAIN!! MINE RAN SWEET FOR MANY YEARS until I made a bad mistake of flushing the engine and stopping up the oil screen due to that high volume oil pump!! SPUN NUMBER 4 ROD BEARING EXTREMELY BAD!! I'm debating on whether to try and rebuild it or find another one and use mine for spare parts!! Now I do have a set of the"MAGNUM HEADS" that came on the 351-401 I'll probably sell those. I have a friend who has a 305b outta a bigger truck it's the same as a 305c except for the intake manifold and water pump housing,, I might get it and put back in my truck? That humongous thing was a pain to get outta the truck!! I've thought about just going back with a 292 straight 6 or a small block Chevy,, but I always LOVED THAT V6! LOTSA TORQUE AND WOULD ROLL ON THE INTERSTATE AT ONLY ABOUT 1500 RPM( MY REAR END IS 3:08) AT 80MPH! WITH PLENTY OF PEDDLE TO GO!! and it's a great conversation piece too,, especially at AUTOZONE.
Best way to hop up the 305 V6 is to replace it with the 351, 401, or 478 ci version.
Just spray it with a 150 shot of nitrous and rev it to 6000😬
@@spankthemonkey3437 lol pretty sure these redlined at 4
8 know it would be. A challenge but it would be cool to see what performance can be brought out of this since it's so solid!
Happy 1.3M Kyle ur the best!
Don't understand why some people refer to these as big blocks. While there were several displacement versions they were all physically all the same
That torque value is definitely pretty good, even by today's standard.
If I had the cash I would one of one Frankenstein build with modified cam heads four barrel &intake with f3 procharger ya baby
@Kyle, Appreciate your video! Have my G-father’s ‘63 3/4t, 4x4, stepside, 4 speed w/ the 305E V-6, all original (evergreen paint), to include the dear ole Stromburg 2 barrel carb. It was really a farm implement on our land down in S. Texas. Winch on the front and a PTO out the back. I no longer have the split-rim wheels that GMC put on 3/4t, and up, trucks at the time b/c they’re now outlawed in Tx & Ok where I now reside. Have the big rear window & bumper as well. Best part is we have 77k original miles on it. Would like to see more of your rebuild videos on this engine. In what state do you live?
Would love to see your truck
Very interesting engine! Great work 😉
We bought a 1972 GMC skoolie that has a v6 big block. I'm the wife and am currently doing the mechanical stuff (and learning) while hubby is at work. I feel so alone in getting this thing going good as apparently parts are hard to find.
Just took carburetor (original) off to clean as it was spitting fuel from the top from debris from critters making a nest on top of carb. there is evidence of debris that has gone past the carb into the top inside engine block. I'm nervous that debris is further down into engine requiring work to clean inside the engine which is way out of my league although I have time on my hands to learn if need be. Info has been super hard to find in helping me learn about the engine so I was relieved to find this video. Any advice would be so much appreciated as I feel like I'm opening a can of worms 😂.
Oh, and the video is incredibly helpful. Thank you!!!
I wonder if you were to put an electric fan on it, if you would even need to kick it on when driving over 20-25 mph. Bet you had to block off the grill in winter to get the cab warm. Hell, if it really is moving 300+GPM through the cooling system, it probably would stay cool so long as a gentle breeze is moving over the truck.
Good job 👏. I didn't know that GMC V6 engines where that heavy that is a wow moment for that era of engines for sure. Here something you might look into find a turbo for that engine a small amount of Boost probably wouldn't hurt that engine the way it was built. Anyway even if you don't do any modes to the engine you have some real history in your hands. Ps you might want to have some harden seats put into the heads because there is no lead for the engine or see if there is a fuel Supplement for the engine and again thanks for sharing a classic with everyone Ray in Idaho
I wonder if the 262 V6 distributor from like 2000+ would work
I have a 1964 GMC 3500 1ton with the 305 V6 ! It starts,don't leak,runs strong and is a complete mystery to me. I would love to swap in something more familiar a straight 6 small block Chevy all of which parts are readily available,, do you know since I have the stock transmission with stick on the floor(factory) I would need an adapter or can I just bolt it up? Any help would be greatly appreciated thank you...
Absolutely amazing. 👍👍
That would make a perfect rocker crawler motor! Would it fit in a Jeep? 🤔
Do you have a model number on that carb? I have a original carb but can’t get anyone to rebuild it the right way.
Hope they make more of them for you and bye bye hope you have a good day
Could you share some of your research web sites and notes? I found one of the GMC V6 motors in an old truck and thinking of making an offer on the motor to go in one of my Willys Truck projects. The torque you mentioned is appealing and the gallons per min of coolant flow would make it a perfect match for an old willys truck
I’d like to see it all hooked up wonder the power ya could get
My grandfather had the same truck same engine he used it to haul stone truck would pull like a tank
i think the biggest was a 468 ci
Awesome video! Thanks.
Really like the video I'd like to see it how it looks when it's painted
well I have to sub a young man doing old school work good on you
You need some of the plaid valve covers.
How’s the Chevelle project coming along? Haven’t had an update on that project in a while.
Great Video Kyle!
Would be such a cool rat rod engine!
Idk if anyone notice but it sounded like Kyle has a Country Accent there for a sec around the 2:23 mark.
beautiful truck man love it
I wonder how it would go with a turbo-hydramatic A/T
Didn't they also use the 292 I-6 as their base motor at the time?
No more videos about the rebuild of this engine?
Now can you do full review startup in depth tour test drive 2003 Ford Taurus please?
Love those valve covers!
A couple of things. That timing chain is not a roller timing chain. It is a morse style. Some of the 305's and 351's had single roller timing chains. Once you got up to the 401's it was a gear train that drove the cam.
Someone's selling a 305 with a 4 speed says it was running out of a 67 C10 for 300, I asked 200 and he said 250, should I take it. I'm not a real mechanic but I want to get into doing cleaning engines up and reselling. I'd be capable of doing valve cover, intake and oil pan gaskets, and painting them, spark plugs and oil. Would I make money of off that?
@@jamesmoore716 Probably not worth it for resale. Depending on the miles (which a prospective buyer is going to ask) beyond the things you mention, check the valve clearance AND it may need a timing chain as well. Run it record oil pressure and then do a compression test too. The more you know about it, the more comfortable a prospective purchaser may feel about buying it. If a purchaser can see it run, that helps too.
The kind of purchaser that might pay you enough to make a few dollars is going to be someone who desperately needs one. These engines are known to be thirsty and as such,many just replace them with a small block Chevy. The 4 speed transmissions (SM420) are popular in some circles (rock crawlers) and in the right venue might bring fair money as they are all but impossible to find now.
@@turbo8454 it's already out of the vehicle, it has a tag in the picture saying 67 chevy C10, is the trans worth reselling?
@@jamesmoore716 You can run it on the ground. I've run them on the ground and on engine stands. The engine should be warm for the compression test and to adjust the valves anyway.
The trans is popular with rock crawlers. If there are any in your area, it might bring good money. If it has to be shipped, because of shipping costs, many may not be interested. I would only buy it if you want it or have a use for it, not with the idea of making money with it.
@@turbo8454 awesome, I appreciate the time you gave responding to my questions, thank you
I'd like to get my hands on one of these motors
Such cool motors. Really excited to see more on this
Have you ever thought about a dry ice blaster?
Great video man
Hey Kyle appreciate your work, you should really do more often this type of content on the channel ! 🙏
This is a cool truck looks just like the one I rode in in 2018 same style gmc a good friend of my family's picked up the truck in the junkyard fixed it up and put in a 350 v8 it was a cool experience riding in a classic truck this one looking like a 60s model not really sure cool truck all the way way around