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Old 06-04-2012, 07:09 PM
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283+327=302

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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Old 06-04-2012, 07:28 PM
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Unless you're looking to build a period correct engine for a period correct vehicle the general trend has been moving toward building bigger engines, not smaller ones.
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Old 06-04-2012, 07:42 PM
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Back in the day we called it a 301, and it was bad *** in a light car. Solid 30-30 cam, add some compression and some gear, it was mean!!
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Old 06-04-2012, 07:56 PM
How fast is fast enough?
 
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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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Old 06-04-2012, 09:21 PM
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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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Old 06-05-2012, 06:48 PM
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Quote:
Originally Posted by oscar327
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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Old 06-07-2012, 07:08 PM
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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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Old 06-08-2012, 09:28 AM
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301

second that back in the day. the 301 sbc. was a hell raizer and could really do the hillbilly boogie.hmmph did i say 12 to 1 solids, 411 s aghh, braggin rights
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Old 06-08-2012, 08:18 PM
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So what would happen if you put all the top end stuff off a 305 on a 302 .
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Old 06-08-2012, 08:40 PM
How fast is fast enough?
 
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Quote:
Originally Posted by mike Crawford
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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Old 06-09-2012, 10:05 AM
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Nope... No power

http://www.z28camaro.com/oldrel.html
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Old 06-09-2012, 10:40 AM
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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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Old 06-09-2012, 12:00 PM
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id do the 302 just for the rpm's. there aint nothin like one wound up bout 10k or more.
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Old 06-09-2012, 12:34 PM
How fast is fast enough?
 
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Quote:
Originally Posted by geezer69
id do the 302 just for the rpm's. there aint nothin like one wound up bout 10k or more.
the crank throw has very little to do with max rpm.
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Old 06-09-2012, 01:48 PM
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Quote:
Originally Posted by prostreet6t9
Shift points 8200 rpm!!
And I'd like to disagree, Crank throw absolutely 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.
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