G
GTI-R Kid
Guest
I've been looking at forged pistons for some time now but i'm unsure what size to go for or what reasoning is behing it.
I understand that they need to be larger than the original as the block will be slightly rebored to fit them and get rid of any scoring caused by the originals - but which to choose - 86.5 or 87mm?
And what difference could one expect (apart from the slight volume difference)?
Can anyonme shed some light on the differences please?
I understand that they need to be larger than the original as the block will be slightly rebored to fit them and get rid of any scoring caused by the originals - but which to choose - 86.5 or 87mm?
And what difference could one expect (apart from the slight volume difference)?
Can anyonme shed some light on the differences please?