i was wondering how much one could bore out an LS block before one has to sleve it.

thanks

 

Call honda and get there piston ring kits that are for bored LS. I think the biggest you can go is 81.5MM on the standard pistons.

I personally wouldn't bother building an LS block when you can just buy a GSR block which are stronger and can handle revving alot easier.

But I guess it depends on what you want.

 

if your goint to do that mind as well get a b20 block.

 

The general thought is 1mm (to 82mm).Honda only sells a +.25mm .There are lots of aftermarket pistons from 81mm to 82mm.