427 Chevy Dyno Tested - Classic Camaro Muscle 

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

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.

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!

Thanks Mike! Much appreciated. ❤️

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.

Thank you Nathan.

Thank you so much!

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

Right on.

Glad you enjoyed it.

Nick didn't build it, George did!

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.

Yea BBC like good heads and some cam.

What's your favorite now?

That would be cool!

Very cool!

I've been using cam motion cams for 30 yrs

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.

Thanks 👍

Only option I would add is Astro Ventilation.......

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 a 10.0-1 compression oval port motor, there is no 600 hp its future with the current parts.

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.

Our pleasure! Thanks again Mike.

They are!

Thanks so much, Bob.

Hope you enjoyed it!

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.

The 428/455 engines are torque monsters. The 428 was standard in the Grand Prix SJ model.

Corvette makes rhe difference.

Awesome! Thank you!

Thanks 👍

More to come!

Thanks 👍

Just buy good parts and you'll do fine! No magic to it, it's science!

Yes it was!

Let the comments begin! haha

@@NicksGarage Only an old school would understand that statements true meaning! I knew you would get it Nick! LOL 😂

Mouses not rats, considering small blocks are 🐁motors.

@@CeL-w2p And BB Chevys are known as Rats! And the Hemi is known as an Elephant! Now you understand what I was trying to get started? LOL 😂 Nick understands!

@@Musclecar1972 I once actually saw that at the zoo. Somehow, a mouse got into the elephant exhibit, and that elephant screamed in terror! It wound up climbing up a rock, standing on it's hind legs and holding it's truck up. Reminded me of an overweight lady climbing up on the table, holding her dress up and screaming because she saw a mouse!

Glad you enjoy it!

Us too!

Right on!

Thanks 👍 Have a great week, Blinkie.

Thanks 👍