Made from molded silicone over the steel shim/crush inserts it won't stick and does not absorb fuel or oil. These oil pan gaskets are one of the best investments you can make if you are servicing your motor on a regular basis with between round maintenance.
Fits all eighteen bolt pre '85 two piece rear main seal type small block Chevy, Donovan, World, Dart, Merlin or CN engine blocks and are .170" thick. Gasket has a left or right dipstick provision.