overbore

[MyKy]

i just sent my block out to be hot tanked but was thinking about boreing it out,, where do i get a +2mm head gasket from , was thinking about trying to stroke it to 2.9. and anyone opinions on any combinations of rods, cranks and pistons are welcomed, thanks

[nando]

you don't need a different headgasket, the stock one is fine for an 86mm bore.

[JonFreyr]

Are you absolutely sure of that? Have been reading a little about this and seem to find different opinions on this exact question....