what is the max a ls1 can be bored to? Any experices or pre cautions? Thanks for any help.

 

No more than .007". That's of course if you're referring to a stock 5.7L aluminum block LS1 and not a 6.0L LS1/LQ9 LS1.

Precaution: DON'T FORGET THE TORQUE PLATE

 

Thanks. Its a 5.7.

 

these aluminum sleeved blocks cant be bored like iron blocks can.

 

Early ls1 blocks (<2000) can only be honed .004, later ls1 blocks can be bored .010" (as per the factory)

I went .007 on my 97 Vette block (3.905) as I spoke with several other members on here that have done the same without any problems. THe only thing that everyone agreed was to not use a power adder (N20, turbo, supercharger) on an early block that had been honed that much.

 

i thought if you had a 98 block that you couldnt even bore it??? i maybe wrong??

 

THey can be honed a few thousandths, not bored.

 

They can be bored. You can take up to .007" out without problems. Honing only takes out, as you stated, a thousandth or two and is just used for cleaning,truing up the cylinder walls and giving a cross hatch for the new rings to seal to. If you go with any aftermarket piston (Or at least 98% of them made for the LS1) you have to bore the cylinder to 3.905" and honing would not realistically be a very good method for removing this much material.

 

If you have any major damage, you either resleeve or throw away and start again.