Return of the Buick 455 Stage 1 - Better Than Stock?
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- เผยแพร่เมื่อ 2 ต.ค. 2024
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Nick wasn't happy with the numbers he saw, the first time he dyno tested this Buick 455 rebuild. So, he pulled it apart and packed in some more punch. Today, we find out if he will make his goal.
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I will do my best to read all the comments as soon as possible. Not easy when working late all the time.
@Car Guy daddyo . When you call the shop, sometimes I do not hear the phone with noises in the garage.
@Brad Hawkins .... No Aussie muscle cars here.
Your the best Nick, keep it up!
Keep the good ones. We love what you do, Nick. Stay safe and healthy. 🤗🍀👍
Hi Nick, There yeah go!!! A little more compression, and your there!!! too bad you had to cut the heads, I heat doing that, but it worked! You'll make more cylinder pressure @ 38*, as long as you had the octane in the fuel to handle it! You Did!! Great job!! Gratz... (o;
I had a 1970 Electra 225 stock 360 hp , 2.73 gears , a little slow off the line , but I couldn’t find a straight stretch long enough to find top end . A nice car !
Big enough for the whole family , and if you didn’t have a family you could start one in the back seat !
Probably could have 'shot' an adult movie in the back seat. (*.^)
Not a hemi killer,Nick built a bone stock 426 and it made 490hp/490 tq,no headers.
I like the fact that Nick never gives up where a lot of others engine builders would. Nice work Nick. Have a great Christmas and New Years
Nick and his fellow techs. seem to find and cure most every issue that they come across... This is definitely one of the best instructional channels on automotive troubleshooting and repairs that is on the TH-cam scene... Great cars too!!! Keep-up the good work Nick and crew!!!
Someone who gives up short of excellence is an engine assembler, not an engine builder.
I was happy to see that Nick finally got the numbers he was looking for on the Buick 455. Milling the heads, and the thinner head gasket made a nice improvement in the HP, and torque numbers. It's too bad that there were no flat top pistons available to use in the engine. 10.5 : 1 compression would have helped the engine even more, but the Buick will be a nice cruiser on the street. George, the background music when Nick finally got the numbers he wanted was spot on, and I got a laugh when I heard it playing. Excellent video, I enjoyed it very much. I hope that everyone has a Merry Christmas, and a Happy New Year, and a better 2022.
Thank you and a very Merry Christmas to you too. 🌲
Surely the Buick Specialists have flat top pistons available... wonder if Nick checked the valve sizes while in there to see if basic or Stage 1 valves... the bigger than stock cam along with still lower compression ratio is reducing the torque peak... just like a hyper tripower GTO engine had lower peak torque than the 4 bbl. version, yet more HP... plus peaks come at higher RPMs...
Also, this cam likes to go to 5,000++ RPMs... even more with some basic pocket porting... like 5500 - 6000 RPMs...
Merry Christmas and a Happy New Year to you as well Eugene! I'm still holding my breath for when that awesome yellow Charger 500 gets reassembled into the mean machine it is! I'm so excited over your build Eugene. God Bless. Fred
Merry Christmas Eugene! Looking forward to seeing your car complete this year.
@@meowerstationone3793 The 500 is very close to being back at Nick's. It is getting some final details at the body shop right now. Merry Christmas to you and your family. I'm looking forward to driving the 500 again, it should be a fun ride.
Showing your small oversight/mistake with the low-end torque numbers is the stuff what makes this channel real instead of a scripted show, love the pure honesty of you and your team Nick!
Thanks for that! We could never lie to you guys.
The steel "turkey tray" intake gasket IS nice in the fact that it help keeps hot oil from splashing on the bottom of the intake and uselessly heating it up.
I'm a FORD guy through and through. But I love to see the HP capability of all motors, especially the rare ones like this Buick! Love the vids and Happy Holidays to all of you, in the Great White North!
Ford, GM, Dodge and other's kicked out some badass big blocks!!
@@boostjunkie2320 They sure did! I had a couple... 71 huge 460 land yacht Lincoln Continental, 428 CJ in a 69 Mach I, and I built a 429 CJ when I threw a rod out of the 428 CJ...lol
@@johnnydanger57 I was raised on GM but I would build any big block from the 60s.
All I've had is tuner cars so far a few turbo Supras but I'm looking for my first muscle project and I can't wait to dig in
@@boostjunkie2320 Go for it!
Nick I watch your show one year now OK dad distributor and I do carburetor. Nobody would’ve found that. If there was somebody number they can find it. You are a scientist combustion engine, scientist, man I love watching your show I learned so much thank you thank you
I too am happy Nick got the numbers he wanted out of this Buick 455. Dallas Brown, a Buick Man and President of AHRA would be proud of you Nick for you’re tireless efforts getting this 455 Buick back in running order and to get the numbers you did. Nick, I am always impressed with you’re knowledge and efforts! 👍
Like there was ever any doubt that Nick would sort this motor out!!!
Pure entertainment! Well done! So much fun watching a true engine man at work. This is the thinking man’s channel. No glitz and glitter, nothing extraneous to what is needed to make the best out of a stock engine. Smokey would be proud of you Nick! 😉
I've always loved the Buick GS cars and the even rarer GSXs!!! Those Stage 455's were just absolutely beasts when it comes to the torque they made! I just know you'll get the best you can out of this block Nick!!!!
When you look up perseverance in the dictionary you see a picture of Nick smiling right next to the word!!! Lol!
I like those headers,they look pretty sharp! I noticed you're using the stock quadrajet instead of your usual demon or Holley dyno carb,i bet you'd probably pick up the numbers you want with it much easier.
George is hysterical with his editing and music score! Lol!
Always so enjoyable to watch ! I have a thing for the 455 Buick engines. Thanks for this.
Thanks for watching!
471 views and 107 positive comments when I got here today. Nick, you should be proud!
You deserve it.
Thank you!
This was really cool. I just bought a 455 that was laying around a shop. I want to rebuild it to put into my 1950 Buick, so these videos with the Buick have really caught my attention. You being a Buick man, among other brands as well, I'm assuming you know about TA Performance. If not, they manufacture Buick engine parts down in Arizona. I would think they would have pistons. Anyway... great work! New subscriber! Wish you and yours a great holiday!
I know TA Performance. We had to build this engine last year. I wish they had the pistons then. I have just bought the .036 Cometic gaskets from them. Great contact.
Firefighter Uppy - no way man, I'd keep the straight 8 over the 455, assuming yours has a straight 8 now.
I live a couple miles from TA Performance. They're great people down there.
Look into doing a full frame swap for a project like that. Donor cars are '78-'88 RWD GM B-body. LeSabre, Delta 88, Caprice, Bonneville. You instantly obtain modern frame, suspension, brakes, wheel bolt pattern, fuel system and drive line configuration. Not to mention an engine bay that will now easily accept the V8.
I love Buicks!
Merry Christmas to the entire gang, AND viewers!!!
Merry Christmas.
That Buick was a real head scratcher ! Some days you get the bear and some days the bear gets you! Bill from Linglestown Pennsylvania
But Nick eats bears for breakfast. 😉
Nick you nailed the timing on the engine and George you nailed the timing on the music!! Hallelujah!!
I've always run my compression tests with all the plugs pulled so the starter isn't straining against the compression of the other cylinders and at WOT. My grandpa who owned his own service station from post WWII till 1980 showed me that when I was a kid.
Correct a mondo.
Your Grandpa was totally correct.
@@nickpanaritis4122 so very humble of you mate Nick.
All plugs out, freshly charged battery, AND WOT throttle.
What cam was installed in the 455 ? Why compare to stock if you changed cam ? Different cam, longer duration will lower static compression numbers.
A discontinued REED cam in the first vid he shows the specs...
Good morning Nick and George, I've been looking forward to seeing some better numbers on the Stage 1 Buick.
Good morning, Eugene. You just know Nick wasn't happy with the last set of numbers. Thanks for joining us this morning.
Good morning how is Texas today, I miss it at this time of year.
@@derekbowbrick6233 We have some pretty nice weather this morning in Texas, 43 degrees F, and clear, with no wind.
@@eugenecastles7475 I was in Galveston for a while and miss the mild temperatures.
@@derekbowbrick6233 One of my favorite songs by Glen Campbell is Galveston. My favorite song by Glen Campbell is Wichita Lineman.
A friend has a 1972 Opel gt he made into a race car. A 4cyl Pontiac engine and runs extremely hard. He set a record in Ohio 4 years ago with it.
Tore down a Stage One engine in the late ‘70’s and found one of the Con rods bowed. Craziest thing. Great video as always. Have a great week Nick and crew.
Giasou Nikola,
Happy New Year & all the best for 2022.
The last 2 weeks have been
" Asta na pane Asta ", but finally I can get back into what I love best watching your video's.
Love how you swear in Greek
" Gamoto " it is abit like that atm here.
Awesome you got the numbers you were after.
Sorry I missed the live Xmas Show it was broadcast at 4 am my time, had a big Xmas Eve at work in the summer sun.
About to watch the latest 2 video's.
Your number 1 Fan in Australia
Louis Kats from Melbourne Australia ☺ 👍 ❤
Very good numbers for a Buick. It will be fun on the road.
It’s interesting that you’re doing Buick stuff I absolutely love Buick and I have some awesome stuff in the works for next month involving Buick 455 power. 🤘 might have to just change your name to the king of torque instead of king mopar. I hope you, and George, and your families have a very merry Christmas 🎄
Awesome! Thank you! Might have to start wearing many crowns. :)
@@NicksGarage I knew you'd get it after all them years working for Biuck Sir 🤣🤣🤣
@@NicksGarage oh what did you think of the email I sent you on the Dodge Adventurer, Ford F-100, Chevy C/10 🤣🤣🤣
@@RichardMLowe ... Loved it. Thanks.
@@nickpanaritis4122
✌🏻✊🏾🇺🇲💯
When I was young guy, I lived in Flint Michigan and learned Quadrajet tuning. The power piston needles on the Qjet had different tapers available. If the engine came with an EGR valve, the Qjet would have leaner part throttle needles. If you blocked off the EGR, you would get spark knock from a lean mixture, changing the needles would fix the problem. You didn’t need to change the main jets, only the power piston needles. It’s possible that Qjet on the stage 1 had an EGR value if it was a 1973 motor or a 1973 carburetor.
@Herbert Hart , great sugestion, for mid-range tuning.... Change the needles that move inside of the main jets on the primary side of the carb... They need to be slightly thinner when the m.a.p. is - during the carb. part-throttle position (cruising)....
Thanks Herbert, was looking for this comment. I'm an old guy too, love the old Q-Jets but still a bit mystified with their tuning at times.
@@michaelmartinez1345 In the 70’s, we had a Q-Jet carburetor shop in Flint which sold every jet size made, every needle size… primary and secondary for all Rochester carbs. The needles have a “XX” code stamped on them. They had a chart showing the end size diameter and the taper diameter, so you could pick out what size you thought you needed. We didn’t have O2 sensors then and tuning was by feel and sound. I was a 16 year old kid back then… fixing carburetor problems, doing tuneups and changing timing chains…
@@HHH22229 that is awesome!!! These carbs are not so bad, and when properly set-up, they do quite well. I have done some tuning on 750 & 625 CFM Edelbrock (Carter) AFB's... Some with mechanical secondaries, some with vacuum secondaries.... The main thing that they needed were needle & jet changes for the primary barrels... For lower vacuum engines with aggressive cams, the lower tension 'staging springs' helped to bring them back into the right air/fuel ratios... Dialing in these carbs gave excellent results, when done AFTER the other changes were worked-out on the engines...
the best fix was always bolting on a good holley and tuning it properly.
Great to see you building and testing the Buick 455 and then sticking with it to get it really running well.
Question: Is there a reason why you don't view the output as a graph? The chart of numbers is obviously helpful to correlate things like fuel consumption and oil psi with power at some RPM, but a graph seemingly makes it easier to spot how the power rises and falls throughout the sweep -- including the peaks. Just curious.
i've wondered the same thing. A graph would make it easy to see the big flat torque curve, especially on this 455. Furthermore, its a little frustrating (but fun, too) watching Nick chase a big number when real performance is measured in area under the curve which a graph would clearly show.
Sorry, my fault. I totally forgot the graph. Yes, easy to look at the curve. I have shown it in other videos with other engines. I will remember for next time.
@@nickpanaritis4122 Oh, no apology is necessary. I was just curious if there was a particular reason for looking more at the chart of stats than the graphs. As always, love the show and especially enjoyed the Buick coverage. Thanks! And I hope you and your family have very happy holidays!
The skylarks were beautifull. Buick is a cut above, the feel, the smell, the quality is up a notch.
Buick has been the “Dark Horse” for the early 70’s ,everyone looked to Chevy and Pontiac for muscle. Buick for the Win👍 this was my favorite video Great Job Nick.
Myself Buick '70 455 Stage 1 & Oldsmobile '66 425 I had my 425 punched 40 over and the '70 stick grind W-30 328 duration camshaft 11:1 pistons edeblbrock torker single plane intake aline bore and balance putting out gust over 500 HP mind you heads were ported & exhaust polished as well and they are the '70 "F" head's connecting rods were polished and shot peened as well as chambering all the oiling system and removing castings dimples in the valley of the block and inside the heads for the oil return.
I used to run 455's. All were .038 over with flat top TRW power forged pistons, zero deck, heads cut .100, custom grind cam was between stage 1 & 2, and big valve springs. If that isn't a big Q-jet power will suffer. They need 30 deg. of advance and at least 100 octane. I have a set of the 10:1 pistons in the garage, somewhere.
It's so cool watching these old Muscle Cars and their engines come to life ...I know the car makers make smaller engines with alot of HP , but nothing like the days of 440s, 454s,455s, 460s,427s, 400s, and all the rest from those days of the big blocks....just love your channel Nick ...yall show how it's supposed to be done . Plus you really work at getting all you can get from them . Nick, you make me want to get that old Ram Air 400 engine I got sitting in the garage out and get it rebuilt and running ....smile .
Merry Christmas and Happy New Year to you Nick ,Manny , and the whole Krew ...May we all be healthy ,happy ,and in Peace...God Bless You All ..
421
I would venture to guess the camshaft is the reason for the torque shift to a higher RPM, and probably the headers too :) very impressive :)
I think a slight advancing of the cam might of helped lower the rpm of peak torque.
@@Jack-ns5mnYES... for certain
Hi Nick your videos are entertaining and I enjoy all the old cars and engines. My first Mopar was a 1970 regular barracuda with a 318 and auto trans. Bought it in the year 1981 sadly was hit from the side and the frame/uni body was bent.
If Nick was a Buick dealer tech back in the mid seventies he must remember their infamous collaboration with Opel around that time!
I had a beater 74 Opel Manta back in the late eighties that was actually a pretty cool little car. It was no Opel GT (the mini Vette) but it was fun.
Manta could be made to run it was a hemi.
Dr. Nick, thanks for the part 2 on the Buick 455, and George awesome video, and good choice of music, and my I say Merry Christmas to all, cheers.
Thanks! Merry Christmas, Eric.
Thanks for another great year of videos and Merry Christmas and a Happy New Year !!!!
Thanks Newf. Merry Christmas and a happy 2022.
That torque curve screams excessive cam duration for street driving. Probably trading 50ft-lb from 2000-3000 for 20hp on top. Oh well it is what was supplied so it is what it is. 🙂
as if there's not enough torque to move the pig around? tires only have so much traction 🥳
I'm a fan of smaller cams in these street motors as well. If you want to see the most beautiful torque curve, the ta212 makes a broad flat massive torque curve on these motors and still makes good horsepower.
Hey there Nick! It's your friend from Portland Oregon. Love this Buick 455 video. Wonderful big block engine built well! Hope you had a nice Christmas. Blessings my friend!
So a bunch of Buick guys tell you to go 34* MAX and you go from 36 to 38 instead to get your arbitrary 400hp
number. My question is why did you not try 34*? I guess you know better Nicky
I also like the High Tack gasket sealer Nick. Nice work with the Buick big block. These have such a long life that modern engine have ENGINE ENVY. Peace
Heck Nick I would've been afraid that GM would have BLOWN UP before you got it off the Dyno LOL good video I watched all of them on this 455 interesting You the MAN thank you.
When the fuel evaporates right you get charge air cooling and higher air flow volume. I was thinking about controlling the flap with a port temperature probe tuning for the coldest gas at the port.
Those original power rating were taken using 100 octane premium leaded fuels assume they were honest at all. There all used different base setups too.
Thanks Nick, I knew you could do it. Your the HP Man. Ronnie.
Fantastic show guys as usual,your dedication to the life and the customer is by far outstanding love the show.
Thank you very much!
Using the stock exhaust manifolds would almost certainly reduce both horsepower and torque.
Nick, I struggled with the same parts availability in my Buick 455 build last year. There was just nothing available in any reasonable time. I ended up with Weisco forged reverse dome pistons and just took more off the deck to compensate. I went .50 over on the pistons because that’s the only size I could get…which makes it a 464. I noticed you had 464 listed in your specs for that engine but if you only went .40 over than I believe it’s a 462. That may play a small part in your CR numbers being off. I loved that you filmed all of this work… I had a lot of the same struggles you had…. Vacuum leak at the intake and then also a small oil leak at the oil pump. What was the deal with your miss at idle? Was that just a worn set of points? Thanks again for this great content, I subscribed.
Sounded like it was cranking slow when doing the compression test. I guess it's what you would expect, stock heads / manifold are strangling the top end so the cam isn't able to perform at high rpm. That carb still sounds well off at low speed.
Pulling all the spark plugs would have helped the engine cranking during the compression test.
That intake is horrible and heavy lol. The stock exhaust manifolds are very good. My 70 Buick has an 850 DP Holley and a T/A intake with a big cam, Hooker headers and a dual 3" exhaust. It's an animal. :) Great video BTW! Thanks!
yeah awesome engine mr. NicK !. size jets for wot and idle . What it needs is part throttle transition circuit modification by adding a jet where there is not one, creating the needed circuit . Where 80% of all fuel economy and efficiency at part throttle comes from.
Factory hush hush tests showed 425 HP on this engine, severely underated on the books. That's why this engine could beat a Hemi equipped car. ( Light engine also)
425 hp on a bench is only 350 NET in the car--the 426 was only 350 net horsepower....any 2021 Dodge with 5.7 puts out more at 375 net.
@@chadhaire1711 but the new dodges are heavy pigs 4400-4500lbs so all that extra weight pretty much negates the net hp numbers .
@@kevinpatrick8788 wrong--try 4200 pounds for 2021 RT with 5.7 that does the 1/4 mile at 13.7 while the 440-6 was 13.8 and 426 13.6..........the 2021 SRT 12.8......newer is still better
@@chadhaire1711 4200 lbs for a new challenger and the charger is 4400 lbs . porkers
@@chadhaire1711 a new challenger rt will never hold much collector value . only the demons and hellcats will . ill stick with my 50 year old plymouth .
Suspense! I'm thinking advancing the cam 2° to get the 180 compression. Gasket match intake and heads to compensate for the planed heads and intake. Nick fixes it all with patience and 2° of timing, and the joy of reaching the goal. Hallelujah, perfect!
I used to use Indian head gasket sealer I still use it today... As to the lean condition in that Rochester carburetor open them primary Jets up,,, go to the next numbers up or maybe even two.. good job on hitting the numbers Nick Merry Christmas to Nick and crew
Leave the primaries lean for good cruising MPG...
Nice detailed footage, it's nice to see the carburetor 4 barrels open while at work with high demand. You got some creativity making it like a movie showdown, its different than most plane Jane Dyno vids that leave out good details. Making adjustments in between and seeing the results. I'm trying to fix a double pumper Holley with a lean issue right about now. Thanx for footage and keep progressing!!!
Good job Niko love them torque monster from Buick.
Love the sound of the classic GM starter too none of those high torque things that sound like a foreign car LOL
I see you won't settle for anything but performance perfection just wish you could find this everywhere
Buicks and Oldsmobile 400+ cube engines were big torque makers not top end power makers from the factory. That 455 is perfect with a 3.42 rear gear in a 3500-3800 lb. street car!
They make decent power too. The torque makes them a lot of fun on the street. I have a 442 and a GSX and they are more fun to drive than anything else I own. The engines are very smooth too compared to a Mopar 440.
Also could pull some tree stumps.
Chrysler 440 also a torque engine with stock torque peak down around 2500 RPMs... HP peak by 4600...
@BuzzLOLOL yeah. I have a 68 rt charger with a 440 and it has some torque but it comes on higher than the w30 455 or the GSX. The 440 is cool but not as smooth of an engine. My w30 is faster than my charger and both engines have been professionally built and tuned. The 442 has a 3.91 vs a 3.54 in the charger which probably helps it.
@@totalyep BTW, there was a 70 car GSX reunion and parade at last May's GS Nats. in KY. It was all covered in a recent issue of HMM.
The parts unavailability situation is certainly an unwelcome challenge these days!
Oh man.. you said it. 'unwelcome challenge' indeed.
Buicks were light nice engines lots of HP
Merry Christmas and all the best for the New Year, Nick and all the by's at Nick's Garage, from Newfoundland! 🎄🎅 Love your channel, never miss an episode. One of these days a visit to your shop is on my bucket list.
This is a great series. Your production value is just top notch, and it is entertaining the stories that come up as the finding out about the subject. Thanks for that. Have you all tried to manufacture interpersonal drama? I like the authenticity, so glad there is none of that filler here.
Looks like you post regularly too, wow there is a lot of great content to catch up on.
Best of luck on the growth guys!
We’re glad you found the channel. Welcome!
Good Job Nick ! 👍
You doing the best job Nick and your staff 👍 💯 thumbs-up
This is the kind of engine that would be perfect for 67-76 riv,s and1967-72GS/ GSX I must find out what kind of engine you're making, I'm for that sort of horsepower for electra's, Riviera, and LeSabre from 1965-76
Yea baby I had 2- 1971 Grand Sports stage 1 love both
Great video…. Love it Nick!!!!
Good job on intake gaskets on the front and back of intake … on my olds 455 I learned from the Oldsmobile KING 👑 Mondelo to use permatex sealant works like a charm!!!! Merry Christmas to you Nick and all your shop workers.. and happy NEW YEARS
Right on!
15 years ago I have taken a porting course with Joe Mondello in California, He was a great man.
Nick it's the longer overlap of the new camshaft.
Camshaft exhaust is opened earlier.
???Try adjustments of exhaust lash much lager (compression test)???
Very nice. Good job, Nick.
What did you end up doing to the Q-Jet to end up curing the lean part throttle/cruise condition?
DEFINITELY harder to calibrate a Q-Jet that it is a Holley 4150/4500, but a Q-Jet is a GREAT street car carburetor once the work has been put in, and it is dialed in for the particular engine that it is on.
The tiny triple booster primary design offers excellent throttle response and fuel economy when you're just pussy-footin the car around, and then those HUGE secondaries sound SO good when you put your foot into it and get the secondary air door to open up wide... 😁
I always loved that sound...
Every vehicle that I've owned that had a Quadrajet on it would also have a flipped over air cleaner lid, just to enhance the sound of the howling secondaries.. 😂
I see this is a 12/2021, but trying to go to a Q-Jet from a 500 CID Cadillac might be a good choice. If my memory is correct, it's an 850CFM, not a 650 or 750 CFM that comes on the Buicks, Buicks are not like Chevrolets, they like big carbs. The headers look like some Micky Thompson reproductions IMO. IMO, for the street, you do not want a flat top piston, They were part of a Stage 2 Dealer installed option, the TRW replacements they used to make for the 1970 455 worked great, they were also available in forged. The steel shim head gaskets are OK, or you can deck the heads and use the thicker gaskets. Whatever you cut from the block and heads beyond OEM, I think after 0.030 you need to have custom length pushrods to keep the valve train geometry right. Cutting the block and heads also leads to oil leaks from under the intake. I'd use Red High Temp RTV instead of the rubber replacement seals on the block. Using the newer split lip neoprene rear crank seal also frees up a little HP. Stage 1 valves and unshrouding the valve pockets were a good choice. Port matching the intake and exhaust helps too. Another way to get some "free" HP, is adjusting the oil pressure, having enough volume and pressure at idle, then "just enough to keep it alive" at high RPM, but not too much that it robs power. An adjustable regulator works good. 6* at idle 36* total advance at 3000 RPM is a good starting point with a stock Buick BB for timing. IMO, bang for the buck stock, a BBB is hard to beat for the cost. Add an early model B4B aluminum intake and I think it weighs the same as a SBC. In another life, I used to run the 1/8 mile in a 3600 pound or so Stage 1 455 that went 7.03 best on just motor. As a joke or for fun, we "tweaked" a stock '67 LeSabre 4dr 400 CID with 269,000+ miles on it to run a 10.000 in the 1/8.
Sorry about the numbers man, you can't win'em all:( Don't sweat the compression - that cam grind is probably goofed. It COULD be a race cam that's completely mismatched to the rest of the motor, but sure doesn't sound like it's got high lift or giant duration. Probably some standard ford/chevy pattern on a Buick blank and sold as a "performance" cam, which is why the power range is messed up.
I would improve the crankcase ventilation with header collector mounted centuries and draft tunes and flame traps
Nick, I love yeah to death but, you got me beating on my screen again! Nick, your killin me here ! First there are 3 DIFFERENT Q jets a 600CFM, a 625CFM and the Buick only Stage TWO ! 850CFM ( VERY rare ) The main thing to remember with all Q jets is they all rely on vacuum pressure caused by the AIR CLEANER being installed! Yes! they have no idea what is going on with out back pressure from an air cleaner as that is what stabilizes the secondaries when to open and how much fuel to draw. Keep in mind all Q jets MUST ALWAYS BE JETTED RICH! as they cannot operate at all lean. Many old time drag racers used ONLY Q jets and they can be jetted & adjusted to really get up and put out some very impressive numbers.
P/S Q jets with headers = EXTRAAAAAA RICH jetting, go up 5 to 7 sizes on the jets and play with the needle sizes and like Smokey Yunicks book power secrets say, READ THE PLUGS! if the plugs show lean put even bigger jets in and don't worry about too rich (hard to do with a Q jet ) until the plugs go black from too much fuel as Q jets flat out LOVE too rich ! I have seen the pros in Q jets drill the jets with a set of number drills! as a rich Q jet with a totally sealed intact air cleaner is a VERY HAPPY carb !
Pontiac 1970's 455 Super Duty's also got the 850 Q-Jets...
Q-Jets change their CFM to match whatever an engine can actually use at each RPMs level...
Lean Q-Jets best for good cruising MPG on the street...
Just wondering if maybe in the future you could build a balanced and blueprinted max tolerance NHRA legal 340 with corresponding cams for single 4bbl and Six pack set-ups, just to see exactly how much horsepower a stock small actually can make. It has been done before with 320hp and 370hp results from a single and six pack set ups.
he doesnt randomly build engines to see what they do,he builds engines for customers.....
We had a 340 last year from Toronto wanting 340 HP with the cast iron intake with the factory Carter Carb. Exhaust manifolds and clean up in the bowl area on the factory cast iron heads. Hydraulic flat tappet cam and flat top pistons with pump fuel. Final results, 340 HP.
Nick i enjoyed you video on the buick 455 stage 1 motor
If that Rochester speadbore has .041 secondary metering rods it will also wake it up!!!!
Ea$iest mod on bbb455 is Aluminum edelbrock manifold; most important is TA performance timing cover
Great results with a stock Quadrajet and points distributor! GM knew how to build em back then....
nice job! Merry Christmas to you and the guys!
Just remember that when you advance timing reset the Idle.
Good to see nick get the numbers he was looking for after fighting the 455 well deserved nick excellent video like always George an thanks for sharing with all of us an merry Christmas to nick an his crew an happy new year an may god bless you all
I don't know who picks the music but that was good once success was achieved.
Hi Nick, I'm new to your engine build/test videos. I find your Buick Dyno's very interesting because the 1970 455's always seem to be Advertised a little low on the HP rating. I just bought a 100% Restored Buick 455 GS that was upgraded by the engine builder to more that a Stage 1 rated HP. I currently have it in a shop for some upgrades. I ran into a problem with ethanol in the gasoline that damaged the Q-Jet internal rubber seals and would never run correctly (could not hold an idle).
What was done to the engine that started off as a Base 350 HP. First it now has Port matched heads, Stage 1 larger valves and HD valve springs were installed, a Comp Cam with a little more performance specs than the original Stage 1 Cam, the original Q-Jet was rebuilt with larger Jets because the original Q-Jet was a 750 CFM and the Stage 1 Q-Jet was an 800 CFM. I assume the larger jets are because of the larger performance cam was installed. The engine retains it's original cast Irion intake (but port matched) and cast iron exhaust. The only performance addition I'm installing is an electronic distributor, no more points to mess with.
I will have the engine run on a Dyno to see what HP it's producing. I'm assuming, it is putting out somewhere between 428 HP and 435 HP with the additional performance mods it now has. I hope it does.
It's rare to find a 455 almost stock, tested on a Dyno. This is only my second Video of your work I have seen so far. Love the detail in your videos, and I love the way you never seem to ever give up trying to squeeze out more HP.
Just for shows I have retained the original Ram Air system, but, for the street, I will be going with a round 360 degree Air Cleaner. I know the Ram Air is restricting air flow into the Q-Jet and I'm trying to get just a little more HP out of the engine. I don't want to modifiy the engine so much that it will be noticeable at car shows and I don't plan on Drag racing it.
I have to say, the previous video you did that you have a big problem with a vacuum leak was a real eye opener for me. I have never seen a vacuum leak so difficult to cure before and I've never seen a vacuum like the one you experienced either. Great job of finding and fixing that problem. Love your craftsmanship.
Love the videos Nick! Thank you!
Motor should have made 425 hp the factory underrated it for insurance purposes the carb is garbage
I almost guarantee your gonna hit those factory numbers! I have confidence in you guys!
A thermally isolating windage tray might be something also for long periods at full torque. And header wrap made with aerogel is another.
When nick is happy you no your motor is more then happy.
Hello everyone, greetings from missouri!, you have any kind of mufflers running off them pipes going outside? would love to hear what it sounds like outside!
What I was looking at is how flat the torque was from 2900 rpm all the way to 4100. That will be a fun engine to drive in a cruiser. I drove a Buick Electra 225 for a bit and lived it.
Carb still needs help, but nice job on the numbers! I'm glad you got rid of the stacked gaskets on the intake, never a good idea IMO, would have needed re-tightening as they settled in. Have a Merry Christmas and many happy new years! 😎
This final assembly of the intake gasket was just the metal valley pan with the sealer as shown on video.
Hello Nick, Leo & George, Dave should be happy with those numbers Nick as you did better than expected. That 455 sounded great and George your choice of music was beaut too. Thanks guy's and have a very happy christmas all.
Well done on the Buick Nick, I notice that the 455 has some similarities to a BB Mopar except opposite, Like the dist. oil and fuel pump. Happy Holidays and a Happy, healthy new year to everyone at Nicks garage. Cheers!!
On the big block Chrysler the distributor and oil pump are mounted to the block . On the Buick those pieces are mounted to a separate bolt on timing cover . The Buick has the worst oiling system of any V8 from that era , and it was known for failing , resulting in catastrophic engine failures .
@@HowardJrFord Thanks Howard, that’s interesting , Merry Christmas
@@HowardJrFord True the Buick 400/430/455 blocks had oiling issues but Buick addressed them in the 1970 MY through I believe some collaboration with Kenne-Bell in West Covina, CA. Jim Bell was the go-to guy in the 60's and 70's to make Buicks fast and I had many phone conversations with him when building my 67 400 block. What follows is what I remember from my conversations and what I did with my engine.
It was determined the problem stemmed from the large 3.25" main journals. At higher RPM (>5000) the large diameter journals acted like a centrifugal pump creating back pressure on the main oil galley. The back pressure decreased oil pressure and flow and the number 7&8 rod bearings took the hit being furthest from the oil pump. The fix was to increase the size of 3 galleys by drilling them out, using the Stage 1 sump pickup with a 9/16" tube and using the Stage 1 relief spring in the oil pump to ensure minimum 60-65 PSIG oil pressure at 5000 RPM. Bearing clearance was also critical and I believe 0.002" was the recommended max for both the rods and mains.
Even after fixing the oiling issue the block was the first GM thin casting which lacked the mass and strength in critical areas for really high HP and torque. I believe the block is good to about 600 HP but above that it gets dicey. Some builders had success with girdles but that was well after my time.
Bon Matin/Good Morning, Nice to see you playing with that Buick again.
Any news on Eugene's 500?
Morning! We know we have been saying it for a while now.. but you are going to see the Charger back in the shop SOON. Hold tight for an exciting announcement.
@@NicksGarage I am starting to sound like an impatient child and it isn't even my car. lol
Recurving the distributor to bring timing in sooner might have helped the torque numbers. Shouldn't need over 34 degrees total.
Nick the buick 455 were Torque Monsters back in day.....if anybody can get this thing running right, it's you!!!!! MERRY CHRISTMAS to you n family n shop family !!!!!
Merry Christmas.
I would dial the timing back. I know it's cool up there but they are detonation prone. Also most of the time the Buick motors like less timing. Mine always made peak power around 32. I wonder if you're not getting a hot enough spark through the points ignition.