LS1TECH - Camaro and Firebird Forum Discussion - What's the max the L92 block can be bored?

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

- Generation IV Internal Engine (https://ls1tech.com/forums/generation-iv-internal-engine-80/)

- - What's the max the L92 block can be bored? (https://ls1tech.com/forums/generation-iv-internal-engine/652147-whats-max-l92-block-can-bored.html)

Black Sunshine/ 00SS

Feb 3, 2007 08:50 AM

What's the max the L92 block can be bored?

Doesn't it start out @ 4.030? Just wondering what the max it could be taken out to.

Whistler

Feb 3, 2007 09:43 AM

It starts at 4.06. How much you can bore it depends on your particular block . The machine shop can tell you.

Beast96Z

Feb 3, 2007 10:08 AM

Bore does start at 4.06". One shop has gone as far as 4.100 on the stock sleeve, but to me, that's pushing it. Espeacially with the uneven sleeves that have been seen in these blocks.

Bring the Noise

Feb 3, 2007 11:55 PM

Texas speed punch's em out to 4.080" for there 418 stroker motors.
The 4.100 build was a specific race build if I'm not mistaken (think it's Shirl's).

I thought the stock bore was 4.065" though (need a 3.75" crank, need a 3.75" crank...)

Jason 98 TA

Feb 4, 2007 10:34 AM

We've built plenty of 4.080 bores without any issues. :) :)

chris.shea

Feb 4, 2007 12:47 PM

Quote:

Originally Posted by Beast96Z

Espeacially with the uneven sleeves that have been seen in these blocks.

has GM gotten this under control?

All times are GMT -5. The time now is 12:59 PM.