20 over bore?

[foxsdesignz]

just got my rebuild kit for my AWD,, and it came with 20over pistons,, , the block is stock, so i am sure i can have it bored to fit them, but what about head gasket,, with a 20 over bore i need to get a what a 86. head gasket?? and will there be any real advantage to 20 over, ?

 

[GSXSixteenG]

Usually anytime you rebuild you bore/hone the cylinder walls to get rid of any scratching and get a good piston ring seal.

 

[foxsdesignz]

yeah, it a topline rebuild kit, just i order standard, and i got 20 over piston and rings, i plan on still using them ### i would like to know the bore is true,, had it honed, but i didnt like the marks that were felt in it,,

 

[toyotaturbo]

Most of your standard Cometic and Mitsubishi head gaskets have enough room on them for .020 overbore. Just buy a Mitsubishi MLS or Cometic and you'll be okay.

 

[toofast82]

On my last talon, it was .020" over and I used the Mitsu mls gasket with no issues.

 

[foxsdesignz]

sweet, sounds good,

 

[HIGHPSI4]

Another here, however I used the OEM composite HG and had no issues on a 0.020" overbore.