Crankcases

Controls the air under the pistons by maintaining the proper amount of vacuum in the crankcase at any rpm Better seal is achieved due to an increased pressure differential across the compression ring Designed to give a 2-7 horsepower increase, with a...

Controls the air under the pistons by maintaining the proper amount of vacuum in the crankcase at any rpm Better seal is achieved due to an increased pressure differential across the compression ring Designed to give a 2-7 horsepower increase, with a...

Durable die-cast aluminum construction with premium chrome plating Easy to grip for hassle-free opening and tightening Styled to coordinate with the entire Precision line of engine covers for the Milwaukee-Eight Compatible...

Contain the required number of ignition cover and oil filler plugs Machined from aircraft-grade aluminum Polished to a mirror finish, then anodized for a one-of-a-kind look Compatible...

Stock or 4-1/8" bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143 Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminum Tough powder coat...

The S&S crankcase oil passage drilling jig is used to perform crankcase drilling modifications when installing an S&S oil pump assembly on early big twin crankcases Made of hardened steel for durability, this fixture enables the builder to do four...

Standard size replacement for use in cases where original breather gear hole has not been modified Kit comes with standard size breather gear and one of each of the following shims: .100", .110", .120", .130", .140", .150",...