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Was thinkin about combining one of my 327's with my 283 to make a 302 it will go into my 70 nova which already has another 327 in it pushing about 450hp at the tires street car weeends at the track i know i would have to spin the ***** out of it just looking for some thoughts on the subject
 

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i'm building a 302 right now, unless you want to kill power reducing your displacement will not make you faster. btw going to a shorter stroke will not get you more rpm, the valve train its the limiting factor not the crankshaft.
 

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if it were me i would buid the 327.. nice motor big cubes or not, it can be buit to run awsome and keep up its other sbc counter parts.. if you have a 4 speed or 5 speed manual trans, that would be even better.. the short stroke motors like the 327 that have less torque like the manual trans better than a heavy auto... just my food for though
 

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oscar327 said:
Was thinkin about combining one of my 327's with my 283 to make a 302 it will go into my 70 nova which already has another 327 in it pushing about 450hp at the tires street car weeends at the track i know i would have to spin the ***** out of it just looking for some thoughts on the subject
If you give us a rundown on your current 450 hp street 327 build, intake, cam, c.r., etc, it will help with ideas for your 302 build.

I am confused though, looking at your recent threads, you just bought that '70 Nova two weeks ago here , with no motor or trans. I see you had an old 327 block and bought another 210 hp 327 last week. Looks like you've built a 450 hp 327 already, and installed it? That was one fast build, or do you have some other '70 Nova's?
 

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Growing up in a salvage yard .. I got to drive a LOT of the old motors Be it small block or big block ..
But for some reason I always wanted to build a 302..
Be it just be because it was not the average motor found when you opened the hood or the fact it was only built three years
The original 302 had way to much compression for today's gas .
But what if you built a 302 the same way you would bore a 283 by 125 thousand.
Or put a 283 crank into a small journal 327
Over the many years ... I of course drove the 283 along with the 307 and 305 and or course the 350 .. Some in the 69- 70 years and some in the smogger years too .
I always thought a 302 would drive as good as a 307 or 305 atleast and maybe better than a smogger 350 .
 

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mike Crawford said:
So what would happen if you put all the top end stuff off a 305 on a 302 .
It'd run slightly better than a 305 and lose its *** to a 350.

302's do NOT make power. Nostalgia is a hell of a drug that makes people halucinate.

I'm building one precisely because they don't make power, I have a good shot at making a WC T5 live behind one.

I'll be running converted lt1 heads which are much better than the old camel humps but still will only make about 400fwhp with a nasty solid cam.

A 400hp 350 is very easy to do now a days.
 

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An NHRA SS engine is usually a wild piece, with alot of crazy stuff to make hp. A local guy has a 69 Camaro thats SS legal and makes about 600hp but things like lifters and valve springs would last 25 miles on the street. The rules say no porting but they must not have a rule about adding material to the ports as the heads on this engine have had much epoxy work in the ports.
 

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Richiehd said:
Shift points 8200 rpm!!
And I'd like to disagree, Crank throw absolutel? y has to do with max RPM. Thats why Indy cars turn 10,000-12,000 rpm, very short stroke. Yes, you need the valvetrain, and cam duration to do it.
comparing an indy engine to a sbc is like comparing an airplane to a paperclip. And they go much higher than 10,000 rpm.
 

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I'm sure that motor was a pretty cool piece and had some rules bent to get it that fast. Jenkins was a pretty creative guy. It's amazing that it ran so good with such a small camshaft.

But to say a 302 won't make any power is just silly. Hit up a NHRA national and watch the super stock and stock eliminator classes. You will see 302,305 and 307's that will prove you wrong.

Is there better engines out there? You bet!
 

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Any engine can be made to make power, that doesn't mean it is a great platform to start with. There are also 1,000hp 4cylinder engines out there, so is everyone going to go get a tiny four banger?

Showing 302 power numbers also doesn't do anything to show you'd be better off with a 383 or larger, which is the point.

If I pulled my 3" stroke for a 3.75" one id gain a significant amount of power, and be more likely to blow a transmission.
 
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