Stock compression on L82?

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Aug 18, 2004 | 01:36 PM

79Stingray

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Heel & Toe

Joined: Jul 2004

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Stock compression on L82?

Can someone tell me the stock compression on the L82 out of a 1979 Vette? And is the bottom end of the engine forged? Thanks

Aug 18, 2004 | 02:11 PM

johnnyc

Instructor

Joined: Jun 2000

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From: smithtown NY

9:1 I believe, and yes the bottom is forged.....JC

Aug 18, 2004 | 02:26 PM

DJ Dep

Le Mans Master

Joined: Oct 2002

Posts: 5,714

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From: Silver City NM

St. Jude Donor '05-'07

225 horsepower. Might as well be a cast bottom end

Dep

Aug 18, 2004 | 02:26 PM

slaine

Instructor

Joined: Apr 2002

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From: Indianapolis In

I blueprinted an L82 onetime, it had an advertised 9-1 compression ratio, but it measured out at a true 8.8-1 with stock 76cc heads. The bottom end was all forged and four bolt.
Mike

Aug 18, 2004 | 03:55 PM

Evil_1979

Racer

Joined: May 2004

Posts: 391

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From: Chicago il

I agree with DEP.

I'll be pulling mine this winter after building up a 383. My L-82 has 106K on it and still runs great, but not worth doing up at this point. I would much rather build up a new (old) block than mess with mine...

It will be a street motor (I have an auto) low-RPM high torque- will be using forged/cast parts mix (cast crank and forged pistons) and it will still be better than the stock L-82.

~K

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