Upgrading the Cadillac 500 To Make Serious Heavy Horsepower - Detroit Muscle S8, E2
ฝัง
- เผยแพร่เมื่อ 2 ต.ค. 2024
- Our '76 Cadillac Hearse gets some engine upgrades to help it get down track. Plus, Tommy goes on the hunt for an axle to keep all that power to the pavement. #cadillac #horsepower #engine
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PARTS USED IN THIS EPISODE
RockAuto.com
Water Pump & Gasket Set
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Summit Racing
Aluminum Intake Manifold
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Summit Racing
Camshaft
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Summit Racing
Push Rod Measuring Tools
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Summit Racing
Timing Set
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ARP
Head Studs
CRC Industries
CRC Heavy Duty Pro-Strength Degreaser
JW Performance
Heads, Valves, Rocker Arm Assembly
Matco Tools
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The Industrial Depot
Tools, Hardware, Shop Supplies - ยานยนต์และพาหนะ
Good thing with the caddy 472 and 500s , even after 100k miles on it they'll still have cross hatch marks in the cylinders they rarely need a rebuild and they love a cam swap, 76cc closed chamber heads, an intake . Been building these Cad engines since the late 90s.
Why close chamber, open chamber breaths better?
The cadillac gurus say the 425 heads don't seal on the 472/500 and vice versa???????????????????????
We like em to for our air boats we run direct drive so horse power is what we gotta have we really only use the 1970 or older motors takes less money to get the power were looking for the older ones were supposed to come with 400 h.p.but we have found a few we knew were making more then that the last one we bought was right out of the car a March 1970 hadn't ran in years I was shocked to say the least when I got the distributor in timed wired high rise four barrel long tube headers Holly 750 and she fired right up and ran real good not even a lifter ticked in it damn ran good but my brother wasn't happy so I changed the cam lifters springs relapex valves replaced guide seals ported heads and intake new even better carburetor fired it back up broke the cam in for 20 minutes at two grand and damn she's got some power now haven't had it checked but I'd bet she's pumping out 550 h.p.
@@ineffable1129 they need the compression
@@calvinlayport3127 0
For 1970, Cadillac increased the stroke of the 472 to create an even 500 cubic inches (8.2 liters), initially as an Eldorado exclusive, producing 400hp and a massive 550-lbs ft of torque.
Yes , no. Way over rated power numbers dude !!
Many people have rebuilt these engines to factory specs and put on dyno. They got 323 hp and 500 torque on a 1970 engine 10.1 compression. I drove these caddys for 24 years straight. I had several and built the transmissions and differential you name it. I forgot more than you will ever know.
@@Iceman_777
500
In 1970 Cadillac fitted a crankshaft with a 4.304 in (109.3 mm) stroke, increasing the total displacement of the engine to 500.02 cu in (8.2 L). At its introduction, it was rated at 400 hp (298 kW), SAE gross, and 550 lb-ft (746 N⋅m) of torque. en.wikipedia.org/wiki/Cadillac_V8_engine
@Darknamja Says a guy who drives a Honda.
I love how they dont just LS swap everything.
I was thinking about a Chevy 502 or 572. But they did keep it Cadillac.
That would be too effective.
Probably should have k swapped it 😂
@@84eurospec911 k swap the world 😂
The LS is the best thing since sliced bread.
Would like to see a full rebuild on a Cadillac 500 with what ever performance parts are available. Maybe Engine Power will do one in the future.
I had a Fleet of 10, 1968-72 Cadillac Fleetwood Limousines all with the 500cid engine. Never had any problems requiring the heads to come off. They had the double wall exhausts that would occasionally collapse after being driven through a deep cold puddle. Instant power loss if they still ran at all! Replaced all of them with single wall pipe. The other thing I did was delete the OEM fuel pumps and replace them with electric ones. They all had those damned Carter Thermoquads. Edelbrock to the Rescue! They drove beautifully. Better ride than a Roller. They were NOT fast!
8:50 Cadillac heads were not the problem. It was the low lift cam. Any time a 500 cuin v8 only make 200 hp. It needs a cam.
No those heads have bigger combustion chambers. Stock compression is either 7.6-1 or 8.0 I can’t remember. Those 425 heads are from the 60s and they raise the compression to near 10.1. The cam only compliments it by taking advantage of the increased cylinder pressure and improved airflow. That cam is fairly mild but still aggressive. Throwing a cam with that duration in a smog motor with low compression and you would have a dog.
@@danhoyland142 425 heads were not around in the 1960s.
@@danhoyland142 No, the 425 is from 77-79
The 425 caddy heads came off the 77 thru 80 engine blocks. The reason we use them its a direct fit and raises the the compression to 12 or 13 to 1,what ever your heart desires
@@puffkendrick6850 We? They don't raise the compression that high and they stopped using the 425 in 79.
Anyone remember Shade Tree Mechanics?
They were Douche bags
lol yes
I do. That was the original there. They showed how to diagnose cars back in the days of OBD1 and even before. Of the time, there was a dramatic change in engineering in autos, they showed you how to work on it
@@jayyoutube8790 Sam and Dave were about fixing cars and explaining how cars worked. Not selling 10,000 dollars of parts for a project. I would watch them on Saturday mornings on TNN when I was about 13 or 14.
@@jonnygg6594
hand me that wrench pal.
Ok buddy here ya are.
🤣
They were corny af, but had the knowledge.
Used to watch all those silly shows on Saturday mornings back in the late 90s/2000s.
I like that they are doing the original big block. But 500hp with 700 Tq isn't going to be quite enough IMHO. But it's fun to see what's going to happen. LOL. Love it!
They put enough RTV on it to stop the titanic from sinking, reused all kinds of old junk on it and then not even touching the bottom end with plans to give it the spray lol
because the car isn't worth anything. it would be a waste of money
@@alejandroherrera5271 If it's worth building, it's worth doing it right. Not doing a bottom-end rebuild and testing/cleaning the block was kinda silly. At LEAST bearings and rings, even if they kept the rods and pistons. Trueing the crank? Maybe, not like they're going for 1000Hp, but still a benefit.
It will probably survive nitrous, but better to make sure it does.
Did you see the condition of the distributor drive gear?
@@MrAcuta73 Right?! Seems like a modern set of rings and bearings would be good for 20-40HP simply because of the improved compression. Less oil consumption if nothing else.
The Caddy engine is actually fairly light given that's it's 500ci and all iron, only around 625lbs. That's fully dressed, a BBC is 685lbs, MOPAR 440 or Ford 460 ~650lbs. Stock it's a 4.3x4x3 bore and stroke.
Buick 455 is the lightest. Almost the same as a iron SBC. Caddy is also light, aluminum heads and intake and it's super lightweight. They are very wide which can be a problem
20:53 gotta love the smoke wrench, beats the hell out of turning all those rusty bolts in the dirt.
I think a gm 12 bolt would have been my choice, keeping it all in the family. Correct lug pattern also..
stuff a ford under it! .... if this car was a ford, I'd say stick a chevy 14 bolt under it! heh,
Many of the GM truck axles shared the same wheel cylinders as the Commercial Chassis cars too.
They come from the factory with a 12 bolt
@@diduck6878 Wrong. It's a proprietary Buick, Olds, Pontiac design but still does not share any of its internal parts. The axles are entirely different thickness and splines. The carrier and ring and pinion are uncommon.
Pretty sure an ambulance station wagon or some commercial chassis gm car's had The five lug Dana 60
The cast iron intake on my old 428fe weighed in at around 78lbs! Going aluminum brought the weight down to around 28lbs.
indeed!!
Even the 352 or 390 intakes were nut busters.
@@bobseagraves1743 They are the same. I swapped a 428 for a 390 in my 67 Galaxie.
"All Ford salvage yard"...you mean a dealership?
@Ed Miller Guess that isn't an "all Ford salvage yard" is it?
@Ed Miller You've clearly missed the point.
When I was working auto repair, a hearse would sometimes come in, and I would be the only person willing to repair it. The other guys were afraid that supernatural stuff might happen.
Cool story
I had a few clients who were in the undertaking business, back when I was a mechanic. Man, those guys were the funniest customers-they were always killin' us with those jokes! I guess you gotta have a wicked sense of humor in that line of work.
i worked in a city bus garage a guy refused to work on a bus cause it squashed someone there was still guts stuck in the brakes & duals i told him see it's all pink on the inside LMAO
@@briannotafan3368 I would work on it if a crash investigator determined the cause and a hazmat team took care of the body parts.
Spend all that money on good parts and do nothing with the bottom end of that junk. Real smart.
I said the same thing.
Put head studs in it but reused the stock oil pump.
Yep
Have you heard of "top end rebuild"?
@@ghost187x everyone has. When you don't know the true history of the motor spend a couple hundred dollars to make it better. They didn't even look to see the status of the motor on the bottom end.
Love the fast work that fire wrench makes on getting that rear end out!!!
Junk yards really like those fire wrenches. Too bad they don't work as great putting things back together.
Love how basically everything can be taken appart with either a 1/2 or 9/16 socket.
Five hunndert cubic inches of Deee-troit muscle!
I'm a bit surprised you didn't opt for a 9in ford made over 30 million of them and there are still well over 100 thousand of them out there. but when you remember the 9.75 has the same sized bearings as a Dana 60 and you can see why it's the new go to
Why in the HELL didn’t you guys check the bottom end? Are you hoping to grenade this and stick a rod through the side of the block?
Maybe they are hoping that it will blow and then they can do it right and put an LS in it!
@beetlebuidler5882 ls swaps are cool but not everything needs to be ls swaped. I’d recommend only thinking about doing an ls swap if the stock engine is trash. These old Chevy engines are nice and pretty simple/bulletproof. Especially the 350
I love how the comments are always full of people criticizing these guys like they dont know what they're doing.
Keyboard Warriors
They do some pretty stupid shit, most of this is such a waste of money and way more expensive than they seem to pretend. Plus why would you waste all that time cleaning the exterior of the block by hand, take all the top end off, leave the old worn out bottom end, and throw on $10k worth of heads and shit? It's just stupid.
the hosts aren't the one's doing the work. i am 99% sure someone else is building these cars and the hosts are in front of the camera for key moments. how can you do this all day and not get dirty?
@Lassi Kinnunen 81 Im fine with that as long as the show is free to watch on yt
@@Chris-yy7qc m
Back in the old hot rod days you took a 500 cubic inch Cadillac engine took the heads off a 472 Cadillac engine installed them on the 500 and it gave you 14.5 to 1 ratio combustion. You could buy an adapter to put big block Chevy headers on it crane made a cam for it and all you had to do was come up with your own homemade intake and you had a beast. Hot rod magazine put one in a Chevy chevette one time.the carburetor ended up sitting around where the windshield frame met the cowl. So yeah any big block didn't run on just horsepower it was pure torque. How to know my big block Mopar 440 used to beat those small block Chevrolets every Sunday at the drag strip.
Get a soda blaster. It lifts grease instantly and it doesn’t harm any paint or finish.
My Great Grandfather drove the Hearse/Ambulance for his town back when.
I must say, the You Tube engine/mechanic channels just seem to be better than TV shows that run episodes on here. I may check out a few other videos.
My first job as a mechanic was at a Cadillac dealership and I can remember most hearsts had 500 v8 engines. It was fun working on them then test driving them and backing a hearst into someone's driveway and watching their reactions. Lol
At this point, they should have replaced bearings, checked pistons and installed new rings-strange they didn't.
...putting all that new potential HP on those old bearings, not checking the crank, and not doing the rings and at least cleaning up those pistons is idiotic...like a refresh nightmare....oil burner...hahaha - they should have just put back the old timing chain...hahaha
Nobody was supplying free parts that's why this engine was so disappointing due to almost no modifications. Stock heads, small cam, intake and carb. There are aftermarket heads and cams that would have shown much better results.
Imagine if they did a 472 or 500 pre 1973. The smog motors are gutless compared to the pre 1973 motors
No shit
Tommy is the best, a company man.better hold on to him.
There is a monster in the hearse. I can see it's eye 4:00
Why didn't you do the rings and bearings since you had the block stripped down???
I love this family thank you for this I got a 76 sedan DeVille I wish I could do my motor like that 😎
You should call that thing “Scared Stiff”! Lol
The hearse is quite an undertaking! 😆 🤣 😂
I have followed you guys for a year and you always motivate me. I want to open my shop and work like you guys one day
Am from Ghana
How come you did not fully disassemble the engine all the way down to the crank and utilize the shop power wash to clean and inspect all the moving parts?
Anyone else wince a little when he tapped that screwdriver into the gasket surface with a hammer? I mean, he did at least use the plastic deadblow, but I think someone forgot to tell him that only counts if the hammer is what's striking the tender bits.
I would’ve replaced the main and rod bearings due to typical failure they get from years of using the wrong oil. But I like where they went with it, hopefully they won’t need to take it back apart anytime soon.
Those freeze out plugs look like they're in need of some luvin'
Did he really just call that thing a "big *bolemeth"?* 🤔
Yeah, he did @ 6:44
I worked on a mint 76 Eldorado Biarritz last week with a 500 engine. Definitely was made outta steel front to back. Electric Green wouldn’t be my choice but different strokes I suppose.
Rocker arm logic:
"Just the tip"
We have a 650 horse caddy.....its a 70 model and we sent it to new mexico to the cad company.....its an animal in a Jeep CJ T bucket kinda thing....I'll post a video this week
I wanna see that bad boy
This is a nice challenge. Brave to hop up a 500 Caddy. It's gonna be gooood 👍🏻
junk the 500 if your gonna do something do it rite the 1st time
Great Vid - Don't see many 500 Builds - However, I am not sure why if you almost strip it all the way down, you just wouldn't go the extra mile & pull the rods, rings, pistons, crank etc & start fresh, even if it's just a rebuild, no oversized parts, boring etc.
Alright..... Alright........ & Alright
The 3 B's. BIG ENGINE, BIG HORSEPOWER, BAD GAS MILEAGE. The only way to go
That dirty short block drives me crazy
A little rtv gasket sealer. How about a half a tube lol theirs enough there to do 5 engines.
That 500 sure would look good with a set of dual quads
why didn't you degrease and pressure wash the engine before disassembly?
They had product placement instead of power wash.
@@GC_420 as long as the show is free to watch, I have no problem with this
I have always wondered t that. It seems it would be less nasty and easier to see what you're doing.
Because it's the car isn't worth anything. No point in putting time and effort for nothing on the back end
Scared to get hands dirty
Pretty convenient Tommy does all the dirty work then putz shows up to do all the fun stuff
I agree, that goof with the glasses and beard is a putz.
A kitchen with 2 cooks makes for bad dinner.
This was one of the most frustrating episodes to watch. So many "why did/didn't you" moments.
It was a serious engine back in 1970. It had 400hp. But it was reduced later to 200 because of the emissions regulations.
My step dad has the de tuned mid seventies 500ci caddy motor in a blazer frame with a ‘64 nova body….. yeah weird but the thing is WICKED!
Got a 72 eldorado, can you maybe tell me what they changed to reduce the power ? Im new in the Muscle Car scene, always had german Cars like a RS6. And no the Eldorado is not my main car😂
@@thelayerstomysoul6170 In 1972 the 8.2 Liter V8 was making about 235hp. They reduced the HP and torque by lowering the compression ratio. Moving from 10.5:1 down to 8.5:1. Also reducing the inbound air lowers the power as well.
Did you check cylinders and pistons/rings?
Dose anyone else remember when Tommy looked like Hanson's long lost brother lol
I had a '76 Eldo with a FI 500. Right, so, just imagine barely 200 hp in a 5,100 lb automobile. I'm fairly certain it couldn't beat a Trabant to 60. Nice, quiet, and smooth ride though.
I'm fairly certain it had timing and tune issues. Did you at least replace that sloppy factory vinyl timing gear? Remember, that 'SAE net HP' was a solid 40 percent less than the engine really made-it was done to make the auto insurance industry happy, and for eco-regs. The EFI version actually made more power than the carb version-and was a lot nicer to drive. Keep a spare temp sensor in the glovebox, tho.
I have a factory EFI '78 DeVille that's supposed to only have 185HP, yet from stoplight to stoplight it will embarrass all those turbo Audis that try their little pass on the right trick. They fail-and lose to a big ole' green, chrome bedecked, 4200lb American couch-mobile!
It's pretty awesome.
@@Bolton115 - I remember the timing gear problems with those engines. The day I bought that car (used) from a dealer, the transmission went out. The dealer took several days to replace it. Two days later the car quit running. They took a day to fix it. Two days later it broke down again. Rinse. Lather. Break down again. Got rid of it in two weeks so never got into the timing gear issue. Those five times when it was running okay were really sweet, though. My '73 Coupe de Ville had plenty of power, though and of all the Caddy's I've had, I miss that one the most.
@@vincentjamesthequicktake1720 most places wouldn't know how to work on those old EFI systems. They can be very reliable, but the tech repairing it has to do a bit of homework. I wonder how many of these got switched to a Qjet due to bad temp sensors and a misadjusted throttle position sensor, or a faulty fuel pump circuit. Today, there is also a MAP sensor mod to allow a modern day 5v MAP sensor to work in the 1970s 9v ECU environment.
@@Bolton115 - If only I had known then what I know now. Thanks for the info :-) The prices of those today have gotten truly insane. Still, I'd rather have my old '73 Coupe de Ville back, carb, points and condenser, and everything!
@@vincentjamesthequicktake1720 yeah, it's hard to beat the older, high compression carb and points setup, at the very least because they are a known quantity for repairs.
I started out with points triggered cars, and wasn't sad to see 'em go when I went to HEI.
you guys didn't rebuild the short block ? OMG
Do the build, have the reveal, then continue the build and cut the back off and make it a Caddy Camino with a wood floor bed with a 6-71 coming out the hood.
Got a good friend at work that had a Pinto station wagon when we were both younger, much younger. He chopped the back half after a tree fell on it and named it the Pintomino. It turned lots of heads. Most likely because it looked as though it was coming toward you and away from you as far as that goes at about a 45 degree angle. Drove like shit, but it was cool!
@@thomashaley5284 should have called it Pimento Cheese
Lots of funeral homes have a thing that looks like a Cadillac El Camino...
I saw a funeral flower car a few weeks ago.
Never saw one or never noticed ,I'm not sure but it was kinda neat.
Basically a Cadillac Ute.
Brought to you by RTV! Get show guys👍
I used those shaft rockers on my 73, 472. They are the best thing since sliced bread! Save the original Q -Jet. They are good carburetors.
Early model small chamber heads would give you 12 to 1 compression with the stock pistons. That swap isn't recommended without upgrading the bottom end though.
Usually the factory cast pistons don't respond well to that increased compression in the 500s. Ring lands tend to collapse. I for one would have liked to hear some further explanation of why they went for a 425 head (with considerable additional machine work and expense) over the stock heads or earlier 472 castings.
425 heads are prone to blow head gaskets on 472-500 engines. The water passages are different and get really close to the fire ring. Better off changing pistons and decking heads. I have done the early and later heads. I would say the later 120cc heads are great for the street, small chamber are probably better for race only however there are several aluminum heads now so just ditch the iron. I would always recommend the grooved cam bearing on any Buick or Cadillac. Me personally would get the heavy stock pistons out. Get weight out of the bottom end and balance, then run roller rockers and you can actually rev it😂
I love the show can't get enough 😀
nice neon green caddy engine paint
Couldn’t plastigauge bearings or show bore condition? Can’t explain torque sequence if you can’t find it?
I've never heard of plastigauging cam bearings
Dude, I know I am late to the video, but I REALLY REALLY wish you had bored the cylinders out. Do you see the sheer MANLY girth of those cylinder walls? You could have added another 1/8 with almost no problems!
You should’ve put rods and pistons in there while you got it apart makes sense
If theres nothing wrong with them why replace them.
@@alex_8025 the rods are the weak point in these monsters
These boys are in dream land USA. I had many 425 caddys then moved up to the 500 c.i. Cadillac engine. I also rebuilt several TH400 transmissions. Getting that much power out of that engine with those mods is not gonna happen. I spent over 10k on mine. Best parts available I got 500hp and 600 torque. These fools have been taking carb cleaner hits.
Now try a ford FE intake. 4 barrel weighs in just south of 80 pounds.
492cu in 502 gm big block? I had a 73 Cadillac sedandeville with one in it. That’s one of the cars I really wish I wouldn’t have sold.
Same tired pistons and worn out rings😖
I just don't see myself stripping down an engine this far and not replacing rings and bearings too....to me that's just asking for it to fail
Is their a 500 already upgraded or do I have to rebuild it. I have the same 500 in my 1974 Eldorado. Wow much would you charge me to upgrade mine?
Following🙃
Did I miss an episode? Did you guys check the lower end crank and rod bearings?
I'm surprised that hearse is not a Fleetwood, they have disc brakes in the back with leveling shocks and they also have aluminum Hood. I would put it in a 79 Cadillac only weight 4200 . It's still a big car
But you did teach me something new. a Cadillac got some big heads like a 454, but the Cadillac heads have small rocker arm covers
Its awesome how they've over the past 5 years have been building the stuff ive been dreaming of
Glad to see having progress
Did you replace cam bearings, rods or rod bolts? Stock pistons? who ported and prepped the 425 heads?
Maximum Torque Specialties supplied the heads and rockers.
"like brand new" didn't touch the internals!!!!!!
Exactly I was gonna post that they didnt even touch the rings. Its simple no or weak compression= Power loss and oil consumption. Going this far and not doing it thouroughly is foolish
@@renj6531 That's kinda what I thought.. I mean geez, not even ball honing the holes and throwing new rings at the factory pistons, mayhaps a set of rod bearings while they're in there?
Well, my brother played with a 500 Caddy back in the 80's. Only thing they are basically broad torque machines Not high rpm HP machines...so...
But its a pretty big black and should be able to take 15to 20 lbs of boost so I guess you can get like 1000 hp out of it. Only thing is, if you used a GM big block with 3 OR 4 stages of NOS the BB can easily make 2500 hp so...why fool with odd duck blocks....
wooooaaaah. what's up with those cam lobes? they look like a damn brillow pad
No shit! That cam looks like it’s been sitting outside! I guess it will self clearance all that rust off once they start it up🤣
You can always tell the guys that have never seen unused flat tappet cams!
@@dodgeguyz if it was nice and shiny like they want , it would probably fail on break in.
Shhhh, don't tell em whats on there😁
Cool Show
Anyone else notice how corroded the "new" camshaft was? I'm betting it has been sitting on a parts store shelf for YEARS waiting for a buyer.
"Man, this intake is heavy!"
-Ford 360/390 has just entered the chat (Good God, those iron Ford intakes weighed over 100 pounds!!)
I'm loving this project!!!
I wonder if they checked the crankshaft bearing for wear.
Nope. Nor the camshaft bearings. Elcheapo ‘upgrade’. That new camshaft lobes look near unmachined too.
They should have re-ringed and put all new bearings at least. nothing like a half ass upgrade.
@@TheBeingReal it's a coating to the cast steel that makes it oil slick and not run off for run in purposes on a flat tappet camshaft.
Only time you'll see bright machined lobes is a reground flat tappet or a roller tappet. Because of the ramp rate and springs required for roller they always make them out of billet.
@@TheBeingReal I just installed a new Trick Flow cam in my small block Chevy and it looked the same. It almost looks like a thin coat of bedliner. (I know it's not bedliner). I assumed it was some sort of break-in coating. It was nearly black and rough as 80 grit sandpaper. The cam broke in normally.
@Ed Miller Then why pull it? If all you are going to do is a half ass cam swap go ahead and do it all ass.
First time I ever seen a caddie motor being built
Go watch Richard Holdener’s dyno videos. Super interesting stuff
You should put that Cadzilla on the EnginePower Dyno.
Does 500 share basic block of other Caddy engines? If so, should be a direct swap into lightweight Stude V8 which shared block dimensions....
Cad company is who to go to for that engine
done all that work ,hope it lasts fresh heads,bigger cam more horse power on a old bottom end,did any one check the cam journals,pull a bearing cap off.lmao.
I'm not a Chevy hater but when you see old pontiac, olds, Buick, and Cadillac engines being torn down, you can see they put a lot more engineering into the architecture. Built to last. The engineers at Chevrolet did some amazing things with attaining power out of what needed to be a cheap design for affordable pricing. Let's face it, Chevrolet was sort of the Kia of the car market in the 1950's and 60's. There wasn't really a cheaper American car on the market. The simplicity of design helped attain that cheap price point. I mean..... the small block Chevy is the most legendary v8. So much power and potential for not a lot of money. But BOP and Cadillac engines were just so much better built and designed.
Back before GM "corporatized" the engine designs in the late 70's (Chevy 305's and Olds 307's in everything...) Each division had its own engineering dept and permission from corporate to go their own way on the design of the engines. As you stated since Chevy made the low cost entry level cars the engines (at least the SBC) were designed to be lower cost since the overhead on a Chevelle was lower then an mid or upmarket Olds Cutlass Supreme, Buick Skylark, Pontiac LeMans (these three were a Chevelle body style with luxury trim and more refinement - to include the engines) The BOP cars had higher profit margins which back then allowed their engineering depts to make higher quality engines - higher nickel content, closer tolerances, novel applications like the TH425 "Unitized Power Package" front wheel drive setup used in the Olds Toronado and Cadilac Eldorado; and the GMC Motorhome once the divisions were required to "share" their engines with each other. Note that Cadillac never shared their innovations with the other divisions; no 472 in an Impala - although many a Cadillac ended up with that famous Olds 350 Diesel and some had the 305 SBC (lots of pissed off customers in that era lol)
My cousin has a 1970 Chevelle as "bare bones" as you could get... 307 SBC with two barrel, manual drum brakes, no AC, manual steering, bench seats and AM radio. A 1970 Cadillac Coupe Deville had power everything standard - note that the 472 series engines are easily identified by the AC compressor mounted to the intake manifold with the radiator hose doing a fancy bend around it. This was done since ALL Cadillacs have AC, standard on all - not an option. The 472 was designed to rev low and produce torque to drive all those accessories and be able to move that 5000+ pound beast into traffic and have power on-demand with no harsh noisy revving. Later on with the Malaise era emissions and fuel economy requirements power was way down... 190HP 500 and the 368 (5 inch bore centers, 10.5 inch deck height for 368 smog-choked cubic inches? Not to mention the one with the Radio Shack cylinder de-activation and then that horrid HT-4100 which most V-6's of the time had more power.
I got a 1975 Cadillac Eldorado convertible with the 500 8.2 liter under the hood. I get about 7 miles to the gallon after a tune up with only 55,000 miles on her.
Why didn't you put a NEW oil pump, and pick up in the motor?
Tommy needs his own TH-cam channel.
If you remove all emission constrain on a 5 liter+ v8 engine it actually make some power, i love america
I love how the projects on here arent all cookie cutter clone LS swaps. As for going to an all Ford salvge yard for a parts for the Caddy? Thats just going back to the Caddys roots because the car that became the first Cadillac was originally created and designed by Henry Ford
@Ed Miller Ford was in with what became Cadillac as well. That is why other than the mechanicals of it, body parts etc from the first Cadillacs and the first Ford Model A could be interchanged. Theres much more to it but its too much to list here
I'm confused. The engine was almost completely rebuilt. Why stop short and not do the bottom end? Those crank bearings could surely use some love. Not sure how long this thing will last. Especially if it gets nitrous.
We've had a few 70/72 472 & 500 engines with just a cam/head studs/head gasket/springs/older MTS shaft rockers and edelbrock intake.Been building them for awhile we lived an hour or so from Marty at MTS,well pretty much his upper valve train.Only lost one to bearings,the bottom ends were stock besides an oil pump and good water pump sprayed the crap out theses motors to the point where the heads were the biggest factor could only move so much air but a 250/300 on a stock ish engine was the limit,sprayed more but no difference in performance.The #1 piston had a tendency to leak a little but other than that they were pretty dam solid.With the factory cam lots of these motors never saw any kind on rpm, mostly gunk in the oiling system from sludge,stop and go city driving.
What were the engineers doing for the twenty years that they weren't engineering on the automobile. In 69 we had four wheel disc breaks on the Camaro and we didn't see them on from the factory until the late 80's.
Cost, it's that simple. Remember, we are talking about an industry that did the math and figured it would be cheaper to let people die and settle court cases than upgrade a 40 cent fuel line. drums to disc entail a lot of cost, hence...we wait.
I'm so happy really, to see other's who see what they did and are doing. That I'm not the only one who sees these things.
Well, drum brakes are way more reliable and cheaper to maintain. You can still buy cars with (rear) drum brakes.
Most trucks (+3,5 Tonnes) still use drum brakes..
@@ferdi93ferdi Cheaper to maintain? What kind of maintenance do brakes need? Anybody can change pads. Drums full of springs are a pain in the ass. Discs feel way better than drums, too. Reliable? So long as a brake line isn't rotten (and that could happen with discs or drums) what's the difference in relaibility? You ever hear of someone doing a drum brake conversion?
And yea, heavy trucks all use drums, but that's a bit apples and oranges, don't you think?
Sorry to carry on, but I hate drums.
I didn't realize that.
I wanted to see the dyno without spray to see the increase from cam, heads and intake, i guess the bottom end was ok?