This is a high-compression gasket, originally developed for 1275 Metros raced in England. It requires a recess to be machined in the top of the block around each cylinder bore.
This gasket is not made to the original design and may not be a direct replacement; fire ring recess OD in block top - 3.060 Fire ring recess depth in block top - 0.027-0.029
Maximum overbore +040.
2/23/2020 2:00:00 AM