LS1TECH - Camaro and Firebird Forum Discussion - 243's shaved .020 ballpark cc?

LS1TECH - Camaro and Firebird Forum Discussion (https://ls1tech.com/forums/)

- Generation III Internal Engine (https://ls1tech.com/forums/generation-iii-internal-engine-5/)

- - 243's shaved .020 ballpark cc? (https://ls1tech.com/forums/generation-iii-internal-engine/1508300-243s-shaved-020-ballpark-cc.html)

eric1h

Jan 24, 2012 12:38 PM

243's shaved .020 ballpark cc?

I am having my heads reworked and trying to come up with my new compression ratio after having my 243 heads decked .020.

its a TSP Short block with Diamond -2cc pistons. Any clue?

Sales2@Texas-speed

Jan 24, 2012 01:02 PM

Chambers will be about 61cc after milling .020". Assuming pistons out of the hole .005", 347ci build, and using GM MLS gasket your static compression would be about 10.9:1.

eric1h

Jan 24, 2012 01:05 PM

thanks!

Matt, just for grins, you guys don't have/sell any used Ls6 blocks do you? I saw you had new ones, but looking for a cheaper alternative for replacing one with an out of spec Bore...

SOMbitch

Jan 24, 2012 02:57 PM

General rule with this bore is every .006 = 1cc..

91sonomast

Jan 24, 2012 03:11 PM

Resleeve your out of round cylinder?

Sales2@Texas-speed

Jan 24, 2012 04:27 PM

Quote:

Originally Posted by eric1h (Post 15879567)

thanks!

Matt, just for grins, you guys don't have/sell any used Ls6 blocks do you? I saw you had new ones, but looking for a cheaper alternative for replacing one with an out of spec Bore...

No sir, we don't keep anything used laying around very often at all.

All times are GMT -5. The time now is 12:43 AM.