what is the max you can overbore cylinders on the 6.0 L block???

found me a cheap shortblock with a couple bad cylinders and pistons....

another project and I aint even done with the current one

thanks in advance

RAT
02 Burb
01 Formy
01 Z oh

 

Some blocks can go .060" over but, the cylinder walls need to be checked to make sure.

 

yea I looked at the same block until I found out it would cost 300 to ship.

 

.030 easily, .060 sonic'd, .090 if you're REALLY brave, and there was a couple of guys on another board that have supposedly gone .125 (supposedly the walls on the early '99-'00 blocks are thick enough to do it) but it's awfully hard to believe because the walls would be paper thin between cylinders......but at .125 over with a 4.125" stroke crank you'd get 454cid !!!

 

Jeez, .125 is a whole lot for a 6.0L block. I've heard of .080" on a 6.0L but, never more than that. You're right those guys are brave.

.125" over with a 4.125" stroke is only a 441" though.

 

oooops....I was doing the math for a 4.250 stroke......sorry

but a 441 would be pretty cool too

 

thanks for the info, didnt get the block....somebody pay over $200 for it

thanks again for the info

RAT

 

So, can the 5.3 be bored to the same displacement as the 6? The strokes are already the same, right? So just a big bore and some new pistons could make a 6L easy?

 

4.8/5.3L can go out to ~3.9".