use the OEM headgasket with overbore 0.20

[SvarO]

I have a friend with Evo 7, he told me you can use the OEM headgasket with overbore 0.20 piston, he said AMS told him that, and they are using the OEM heatgasket on the racing car.

Is true?

because if is true i want to use the 4 layer mitsubishi metal headgasket with my wiseco 9.0 .20 piston.

 

[pj91gsx]

I think all head gaskets are the same. I have never heard of an oversize headgasket.

 

[Stainbox12]

There are overbore gaskets with several sizes and custom made too. You should be fine with the stock gasket and .020 pistons. I recently ordered one from cometic, custom made, with 1.8mm thickness and .020 bore.

 

[someguyonline]

i've used a stock headgasket on .40 over pistons with no issues