Outer holes are sized to allow for correct positioning.
Fully annealed Dead-Soft Copper
Made in the U.K.
This gasket is designed specifically for use with Routt or Chatland 3.000 thru 3.060" big bore pistons. This will also work well with MAP's "Zero Deck" STD (3.000") & 3.010" bore pistons. For larger zero deck pistons, see MAP9071 and MAP9072
Measure your piston outside diameter 90-degrees from the pin at the base of the skirt
Please be aware that when using Any Zero Deck piston that the headgasket must never be closer than .010" to the bore or piston will hit causing catastrophic damage!