Need help on up or down for a gm head gasket no markings both sides are not the same one side is smoother thank you
Do you have a brand and part number ? color of gasket ? engine size and year.
It is stock for a 602 black in color got some # s on1 side with a little smoother
On the black GM gaskets I have , the numbers go towards the block, my gaskets has #5746 on the side that goes towards the block.