spdway1 Well-known member Sep 15, 2026 #1 What part of the Best Copper head gasket faces up from the block? Les books says chimp face down toward the block. I have been told otherwise because the crimp could mark the deck permanently. Please give me the FACTS. Thank you.
What part of the Best Copper head gasket faces up from the block? Les books says chimp face down toward the block. I have been told otherwise because the crimp could mark the deck permanently. Please give me the FACTS. Thank you.
alexiskai Well-known member Sep 15, 2026 #2 Vendor logo (Best, Felpro) faces up, that’s how I remember it.
H Hitman Well-known member Sep 16, 2026 #3 Crimp goes against the cylinder head. The crimp can wear into the mating surface and it’s cheaper and easier to mill the head than the deck.
Crimp goes against the cylinder head. The crimp can wear into the mating surface and it’s cheaper and easier to mill the head than the deck.
katy Well-known member Sep 16, 2026 #4 Hitman said: Crimp goes against the cylinder head. Click to expand... Ditto
Phil Brown Well-known member Sep 16, 2026 #5 It works fine both ways (crimp up or down) but better to install it up, for the reasons stated above
. Thank you.
