427 Chevy Dyno Tested - Classic Camaro Muscle
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- Опубліковано 26 вер 2024
- Nick's Garage Gear Shop
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Here is one of the iconic numbers of muscle car history, put to the test on Nick's dyno.
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Had fun back in the 70's with a Corvette 427 / 4 speed , working as a service advisor at a GM dealership. What a monster for the time.
I have a 65 427 Vette sitting in my garage. Every time I take it out it turns into a car show.
Way too heavy for a Vette front end.
@RidgeRunner-sm1vs that's why GM put "big block" springs in the front....
Was it the L88 427 by chance??? Lol very slim chance lol
I’ve grown to really enjoy your show. As a prior owner of a 99% performance machine shop I appreciate some of the problems you encounter and work through. My family is now on our 3rd generation of engine building and professional racing. Many of the engines on the TV show Street Outlaws No Prep Kings is built by our family. I’m old and retired and spend my time watching different shows related to engine building and stumbled onto yours. We built hundreds of big block Chevys staring back in the mid 70’s when NHRA first started the Super Gas class we built dozens of 454’s which were perfect at day and time for the class. We didn’t have a dyno back then so I like to watch you dyno those mild performance engines to see how much power they have.
Funny how simply putting a 427 Chevy on gets everyone's attention and doubles your viewership...lol
I love those valve covers and the engine sounds sweet. Great job guys!👍
Excellent 427 BBC. The big block that revs like a small block.
That’s the secret sauce of a factory internally balanced rat power! THE best Chevy Big-Block produced! 7000rpm all day long in a BBC!
Thank you Nick for another GREAT DYNO DAY! Keep them coming!
That 427 is a GREAT engine that'll put a smile on your face once it's in the Camaro!
580 HP😮 I would be a happy boy. What a nice street engine. Great job guys.
580 hp gross is only 469 hp net....2023 Mustang GT does 480 net...no big deal
@@chadhaire1711 and it has a computer, fuel injection, 4 cams and vvt. This is an old school carbureted with a mechanical distributor. Single phase cam. So yeah apples to oranges. I am 65 years old and have watched the engine evolve. So yeah that is good power out of a 427.
@@randylear8264 That 427 will be even more fun to feed at 7 mpg.....might see 10 on the highway. And like all Chevy big blocks the valves will die before 10K miles. The last three Hellcats I drove did 22 mpg, even the stronger 800 hp version. Newer is always better. I dont miss any of those old rust bucket cars from the 60's 70's.....
@@chadhaire1711 I own a 70 GTX 440-6 barrel. I know something about the milage they get. I don’t daily drive my GTX. So it’s still apples to oranges. That is the beauty of the modern cars. But a Nova with a 427 is not a daily driver. Just a cruise once in a while.
@@randylear8264 Well the only way I would own one of these old cars would be to get what a guy I know has....he bought a 1970 Dodge Demon, then put a modern 392 SRT engine and tranny under it. It can be driven daily, and will smoke about anything off the road. That is the way to do it.
The sound of that distributor cap going back on brought back memories ❤️
fun times for sure. Tuning or just tinkering every weekend. Now it's boring -- plugs maybe once a year, oil and filter every 3-4 months. Modern engines just don't make the same 'thunder' and some even don't make any noise at all- some even make fake noise. Sacrilege.
I absolutely love when you do mail time! It's so nice to see what your fans send you and the team. Always a pleasure to watch your videos and live shows. Take care everyone!
Thank you so much!
555 hp/ 545 lbs torque. Excellent choice of components, especially the oval port heads
Right on.
Awsome 427 dyno blast, enjoy the coffee guys, Nick your cars at Glendale looked Amazing. So glad I got to see them in person
Thanks Mike! Much appreciated. ❤️
The 427 was my favorite big block
What's your favorite now?
Absolutely wonderful filming job like always George
Thank you Nathan.
Congrats on your 427 George , hope it brings you many fun miles.
Mannnnn the 427 Chevy sure sounded good and what a Engine !!!!!! They just don't make pure horsepower like that anymore !!!! Very good numbers and a Classic engine from the good ol days !!!!! Great stuff Mr.Nick !!!!!!!!!!!
No, actually they do!! In fact, they make much more horsepower today!
@@cryptonewbie2041and they're all forced induction, so they don't sound nearly as good. I'd prefer the old horsepower where you feel the power
C8 Corvette Z06 makes more naturally aspirated lol but that's about it lol so yeah for the most part I definitely agree
@@bengagnon6947 after 50 years of advancements, with EFI and EI, and the stupid complicated ECU to perfect ignition and the amount of fuel used id goddamn hope so
550 HP , 540 TQ. Those AFR ovals are great heads.
Yea BBC like good heads and some cam.
That’s a Nick build from the ground up. Starts instantly, engine sounds so crisp. George, your opening for this video was great. Have a great week everyone.
Glad you enjoyed it.
Nick didn't build it, George did!
It has been a long time since I’ve heard the throaty 427!! That is sweet. When we heard that sound on the street… you knew it was special. Great camera work George!
That was crazy cool that someone would send you a model of your car! Nick! You got to get that motor done. Put it ahead of the line. That was really great of the guy to do that.
These are a great motor to start with and you made it even better, Nick! What a monster to say the least. Great job!!
Its great to know im not the only older man that still builds models. Great job on that build! I love to see the care you put into it! George, i can't wait to see yours back on the road!!
I agree with George, "Let's make some noise!" Very nice engine indeed.
Awesome 427 Chevy it would be fun in a Camaro. Good job Nick and crew on the build keep them coming and see you Monday
Good set of heads on this iconic Chevy. Good job building it. It's a beast!
One of the greatest engines ever developed. Its my favorite big block. My dream is to build a 69 Chevelle 300, with every option delete you could get in 69, drop in an L88 speced 427, with a Rockcrusher. Making it a tribute to a 69 COPO car. Only options i need in it, are a steering wheel, a shifter, a seat, a clutch pedal, and a gas pedal. Dont even need a brake pedal. 😂
Only option I would add is Astro Ventilation.......
I had a 68 Camaro with a 427 and a Muncie four speed, 3.23 gear, great driving car!
68 with a 427 ?? Not from factory.
Was it a YENKO ?
@@robt3305 The 427 was a 69 390 horse engine, somebody prior to me had sourced it and dropped it in the Camaro. I later took it out and replaced it with an aluminum head 468 that I built and put the 427 in my 69 el Camino.
Dr. Nick, fast story, right before I got my 1967 GTX Hemi 4 speed, I almost got a 1968 Nova with a 427, so thanks for the flashback, enjoy your model George, cheers.
Sounded like the valve springs started to float
that's what I thought as well
Ditto. Nothing to do with distributor.
I was suprised it made it to 6400
I think its his dyno unloading. Shouldnt take much spring for this baby cam.
Springs are maxed out with the hydraulic lifters.
You gotta love Mail 📬 time and Nick's awesome viewers!!!👍😁
I won't be surprised if one day you get a whole car wrapped up and delivered in the mail with the way your great viewers are so dedicated!😁👍 Much love guys.
That would be cool!
Wow. That is a great Motor. That Camaro will Be pretty Quick. Nice Job Nick.
Ford Chevy Chrysler doesn't matter it's all about the horsepower and the sound of course Chryslers are my favorite
615 HP 581 Torque, Good looking Engine!!
I haven't watched the whole video yet but I suspect it may not have enough cam for 615 hp.
Dude you and I are way off no info on the cam specifications and that intake manifold looks not so good but I love the power with that so far.....yes
@@danielsavedra4358 he showed all the cam specs toward the beginning. Look at 3:24.
That’s valve float at 6400. If you want to go higher you need stiffer springs.
615 gross is 498 net....only 18 more than a 2023 Ford 5.0 at 480 net
This is another fun video. I have wanted a 427 in a 1967 Corvette for 53 years !
Good Monday Everyone !!! George great intro !!! Beautiful camera work !!! Big Beautiful 427 BIg Block !!!! Dyno Monday !!!!!!!!
Enjoyed the 427 on the dyno Nick! One of my favorite engines. Mail time is fun to see what people send from all over and the effort that goes into it. That '64 was a nicely done model!
My favorite engines end in 27. Thanks Nick and George.
Thanks Nick for the build and test of the Chevy 427, for we Chevy people (though I'm a Pontiac guy) That was an awesome mail edition, especially George's '64 Bel Air with the inline six! :)
Very cool!
you did a great job building this engine Nick! I'm sure the customer is more than happy. take care.
Great the way the 427 roars to redline and as soon as the throttle backs off it settles into a healthy idle like "what else can you show me?" That's a 10 second Camaro! Beautiful build Nick! Way to go George!
I live in Baton Rouge the home of Cam Motion. Kip use to build cams for bikes for some of my friends back in the 80's.
I've been using cam motion cams for 30 yrs
Not a 426 Hemi, but a 427 Big Block. Enjoy seeing all types of big engines making great horse power.
At least HP 530/TQ 560
I'm glad to see you doing a video on Chevrolet do a few on small block 327s I would really appreciate it thank you and you're doing a great job keep them coming. ✌️
I can't wait to see this in a car!
L88 427 and 454 ls6 kings of the muscle car world 🥳✌️
Nice 427 Nick, thanks for sharing. 👍
Have a good evening.
It sounds great , plenty HP for the Camero ,nice. Thanks Nick
Holley 950 or 4500 1050. Tube the transfer slots for good mileage using a wideband O2 sensor.
Progression Distributors to tune the advance for efficiency. It’s blue tooth programmable from your phone. 650 is in that engine.
This is a 10.0-1 compression oval port motor, there is no 600 hp its future with the current parts.
Hi Nick and George....so glad George loved his replaca of his 64 Bel Air! Thank you for all the awesome videos!
Our pleasure! Thanks again Mike.
That engine is a BEAST! I love it! Thank you Nick.
Those valve covers are sick. Love the finish flags.
They are!
Definitely valve float, bbc valve train is heavy and they don't really like to go above 6500 with hydraulic lifters
Came to the comments to find this observation. I agree, heavy valve train with a lot of potential flex and hydraulic lifters makes spring selection key.
Maxed out on valve springs with the hydraulic lifters.
Greatest motor ever made.
I agree. My 427 was built in 1983 to rev and hold together and run on 92 octane pump gas and it’s been a great engine for me. It easily beat an LS6 1970 Chevelle SS .
Certainly better Engineered, the BBC and the SBC, than any of the Competition, well into the 90s
Nicks constant is 1.32 so 432 cubic inches x 1.32 = 570 . Most builders would love to be able to build engines and get the results that Nick gets, consistently!
Just buy good parts and you'll do fine! No magic to it, it's science!
awesome show that 427 sounds pretty good great video
Thanks 👍
Good afternoon Nick & George!! Another Monday and we have a 427 Chevy on the Dyno. This engine has some great parts, that should make plenty of HP for George's Camaro. My guess is that it will make over 585HP, and 600+ Torque. Always something different at Nick's Garage, the best channel on UA-cam! Here We Go!!
Thank you very kindly for joining us once again, Mr Eugene. We always appreciate your kind and knowledgeable comments. 💛
hi Eugene, with all the flooding down your way I trust that you and yours are safe.
@@NicksGarage I really enjoyed this video George. Watching the 427 on the dyno brought back a lot of memories from back in the late 60's. I was a little off on the torque numbers, but I think that with the new distributor, and the 850 Carb, the 427 will make my predicted HP. George will have an awesome 68 Camaro with that motor under the hood.
@@ericball6000 Hi Eric, yes we have had a lot of rain lately, but we are all safe. Hope you and your family are well.
Another awesome build Nick! Back in 1981 my brother purchased a crate LS6 454 from chevrolet. Unlike the production car 11.1 closed chamber head, the over the counter crate engines are 10.25 open chamber. My brother had it in his 1967 camaro 4 speed 3.73 posi. He followed chevrolet's power book recommended set up. For a super responsive throttle and acceleration a holley 830 annual discharge double pumper along with stagger jetting for the factory dual plane hi-rise intake was just perfect set up for the camaro. During that time many magazine articles swayed readers away from running rectangular port heads for the street stating that low speed will be sluggish. Well this was not the case for the LS6 454. The factory solid lifter cam was very healthy but no where near radical like the L88 or the ZL1/LS7 cam. That 454 had plenty of low end grunt! I was 14 years old at the time. It was that LS6 that forever got me hooked on big block power. I currently have 2 big block engines that run on pump gas (91 octane) one making 705 hp and the other all aluminum 955 hp. Sorry to be a bit long winded, just wanted to share my experience and story.
I had all three 50 yrs ago at one time or another,428 Cobra Jet, 440 Magnum Super Commando , 435 HP 427 with tri power in a Corvette, stock on stock the big block Chevy was king !
Corvette makes rhe difference.
I was waiting for this to drop, saw the short announcing it. Love to see some rat bowtie content! I can just picture dropping this in a 68-72 Nova! Like a COPO tribute.
Hope you enjoyed it!
A wide open small block Chevy sounds like 8 angry chainsaws... A wide open Big Block sounds like 8 angry Small Blocks... Grizbilt...
I put a 428 pontiac in my gto. While i rebuilt my 400. The 428 was a monster out of the hole. More power than 400. So much more i wanted to keep it.
The 428/455 engines are torque monsters. The 428 was standard in the Grand Prix SJ model.
Hi Nick. Since you are doing a Chevy engine. I think you will enjoy this. One of my best friend's was a top engine builder who also knew Keith Black. We had built a small block Chevy 350 engine. Compression was 16.5 to 1 cam was 675/326 3/8 push rods if I remember correctly and I think the cam was 2 or 4 degrees advanced single carburetor. Turbo 400 transmission with a 5500 to 6000 stall don't remember what gears in the rear-ended it was only a quarter mile car a 1967 camaro. Two ring pistons.
Two pieces of equipment I liked when working with old school engines (not just carbed with points) are a simple two gas (HC Co) exhaust analyzer and an oscilloscope (also known as a "Sun machine") so as you can view secondary and primary ignition waveforms. It seems that the use of these tools is over with? One of the most overlooked items when giving an oldschool engine a tune up is proper operation of the ignition advance system. I suggest that people entering the field and are interested in this type of tuning become very familiar with the difference in ported and manifold vacuum and how the loss of manifold vacuum and the gain of ported vacuum upon opening the throttle has been used by engine designers. The loss of manifold vacuum has been used as a signal to increase fuel pressure in early fuel injection systems. Just what you want when you step on the gas.
I would like to see Nick work with a FORD 3.5L eco-boost engine. Perhaps some review will be needed to work with the FI and twin turbos. 600 hp for the street out of 3.5l is possible. The statement "no replacement for displacement" is no longer true.
Interesting when you pulled the cap on that distributor. Old school. No electronics. Cool!
Chevy fan here, thanks Nick. All your content is great.
Awesome! Thank you!
Chevys are so easy and cheap to make power. They are the swiss army knife of engines!
427 Chevy SCREAMMING for a Cater 4747 ( You know just what I am talking about Nick!) FEEEEEEEEEEEEEEEEEEEEEED ME AIR !
that is a serious big block engine, thnx Nick.
Initially the 427 was rated at 450 horsepower then reduced to 425 horsepower. The 454 LS-6 was rated at 450 horsepower. They were both underrated.
My cousin had a '69 L72 with 4 speed. It was a beast and you had to be careful, it would put ya in the weeds in a heartbeat. Don't know what happened to it after he sold it.
That guy really put in some hours building that beautiful model of George's 64 Belair. EXCELLENT !!!!
You are real nice guy to treat everyone special.
That's a beautiful sound - Nothing sounds like a GM big block
afr heads make a ton of power they flow really well
That engine sound amazing
Those AFR heads just proved why they cost so much. You can build a streetable combo with a reasonably mild camshaft and still make more power and be more driveable than a large cam/factory head combo. Nick, you hit this one out of the park!👍🏻 You should have a solid mid 10 second Camaro once you’re done.
Mid 11's takes more to run in the 10's. Back in the day a 68 427 Motion camaro was sold and advertised as an 11.50 car out of the box.
Valve springs are going on vacation at 6400
Yeah I thought the same. Sounded funky and dropped power/torque like flies.
That was my thoughts too.
Hydraulic cams sure are nice but they have their limits , I took a nice hydraulic roller and put solid roller lifters on it , comp 929 springs and it doesn’t lay over and virtually maintenance free haven’t had to adjust them for few years now
Springs are maxed out with the hydraulic lifters.
George that was a great gift you got! That model car was perfect!
Yes it was!
That engine should be fun in a Gen 1 Camaro.
That torque curve!
When Nick was asking I said it better make at least 550 HP with those components. I think it's capable of 575 give or take a little. Water leak is when I commented.
Beautiful looking and sounding 427 Nick, it's putting out good horsepower for a 427, I really like those engines. Nice job.
Thanks 👍
Needs ovate springs and titanium retainers. 800 cfm will feed it plenty.
Would also recommend 1.8 rocker arm ratio on the intake side of the valve length is long enough.
That should wake it up a bit more.
I really hope you make another video on this one. Love all your videos.
Great content in Nick's dyno room....thanks alot...👍🔧
More to come!
Dana "60" Glass. Great dyno pulls on the 427. Love to see and hear a 375/396 and compare numbers. Great video as always
Hi Nick. Matt from RI. Great to see that bad 427 on the Dyno . I am really curious to see what type of numbers it will put out.
That would look great in my 1969 Z28 Rally Sport. Cant wait to hear this motor run. I just might have you build me one of those . We might be talking . Let it rip . Good luck . Have a great night.
Doesn't get much more genuine than nick amd George
My personal favorite big block
The intro thru the garage and into the dyno room triggered my salivary response...."he wants to get 550 horsepower", triggered again!
Great show Nick! You’ve got it all, from a great sounding 427 to awesome mail time!
Perfect. !! Building one now and these numbers should be where I'm at. You didn't have the cam specs, I'm not so savvy at all the computer stuff you do.😊
Daayum George yr scoring some pretty cool stuff. You do great work and you deserve it mate. Well done from Australia 🇳🇿
It's a beast. Wonderful build. Grats!
Glad you enjoy it!
I had good luck running Accel blueprint HEI distributors. Dial in the right curve and they were hard to beat for the money. That was back in the 90's though. I ran a Q- Jet as well.😁
The 427 runs very nice 👍🏻. Love the fan mail time.
Eddie Patterson,Silverstreet, South Carolina,U.S.A.
Thanks 👍
I am impressed , all that with oval port heads and A nothing special distributor... Nick the water on the pan is your watchers drooling on your engine.
I am a chevy guy...Thanks Nick.
Hello Nick.
Thank you for another great video.
Take care.
From Sweden 🇸🇪
I really like those valve covers!
Us too!
Love to see georges smile 😅
That engine would be nice in a 69/70 Vette 4speed manual trans & 3:36:1 posi rear and chromed side pips. Don't forget the Police 12X2&1/2" non powered finned drums all round. Love those brakes. Never had any problems with them.
I love drums too, but you know those vettes had 4 wheel discs since 65.
Beautiful. Maybe shim.the valvesprings a bit more? Horsepower was still going up, then something happened. Great horsepower for oval ports. The 850 is going to help on the dyno