How many use OEM head gaskets with 88mm bore pistons? Stock bore being 87 mm the stock head gasket is like 87.5 mm or .5mm over sized. If used on a 88mm bore I would then think that the sealing ring would be just inside the compression chamber. With is the main issue I had with a Cometic 88mm bore had gasket and am hesitant to use a OEM gasket for this reason. Even if the gasket was a 88mm bore it would be the same size and block bore. One engine builder says no to using a OEM gasket with a 88mm bore and another says use Tomie 89mm metal gasket. I tend to like this idea butb I am not so sure the RA smoothness on the block and heads are good enough. All is good and flat but machining swirls are present so I am uneasy in going with another metal gasket. Why do you guys think?
05:05:48 08/07/23
