Thread: I want to get 425HP out of a 327...

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Do you remember when stock a 327 came with 375 HP. Surely we can get 50 more HP. If I were going to build a motor just to win a race, It wouldn't be a 383. He wanted to build a 327. 7000 rpm hole shots were fun when I was younger.

Originally Posted by Mikej

Do you remember when stock a 327 came with 375 HP. Surely we can get 50 more HP. If I were going to build a motor just to win a race, It wouldn't be a 383. He wanted to build a 327. 7000 rpm hole shots were fun when I was younger.

Are you old enough to remember 100 octane gas at the local corner service station to feed those 11.0:1 motors??
Are you old enough to know that the hp figure was GROSS, with ZERO accessories??

Fred, if you are stuck on the 327, just hook up a 125 shot of juice to it. Done.

The way they measured horsepower back in 1965 when they rated that 327 fuelie engine at 375 hp is different than the way horsepower is measured now. By today's standards of measurement, that 375 hp 327 would probably be closer to 350 hp.

Originally Posted by techinspector1

Are you old enough to remember 100 octane gas at the local corner service station to feed those 11.0:1 motors??
Are you old enough to know that the hp figure was GROSS, with ZERO accessories??

Fred, if you are stuck on the 327, just hook up a 125 shot of juice to it. Done.

I do remember 103 octane at the local gas station. You could run a couple of different mock ups on your desk dyno and see what you come up with. And I did have a 327 as a kid with 11:1 - 2x4's- 292-302 dur. solid cam .512 lift and manual trans. Lots of fun. 4 miles to a gallon. lots of broken parts.

Check this site for 327 build:http://www.chevyhiperformance.com/te...mer/index.html Getting close.