Pistons - Rings - Cylinders

Black w/ Highlights Big bore bolt-on kit increases 107" M8 to 129" with no case machining required Big bore 4.320" cylinder with 11.0:1 forged pistons S&S oil pump/cam plate Passage plugs are removable for servicing Independent...

Black w/ Highlights Big bore bolt-on kit increases 107" M8 to 129" with no case machining required Big bore 4.320" cylinder with 11.0:1 forged pistons S&S oil pump/cam plate Passage plugs are removable for servicing Independent...

Black w/o Highlights Big bore bolt-on kit increases 107" M8 to 129" with no case machining required Big bore 4.320" cylinder with 11.0:1 forged pistons S&S oil pump/cam plate Passage plugs are removable for servicing Independent...

Black w/ Highlights Big bore bolt-on kit increases 107" M8 to 129" with no case machining required Big bore 4.320" cylinder with 11.0:1 forged pistons S&S oil pump/cam plate Passage plugs are removable for servicing Independent...

Black w/ Highlights Big bore bolt-on kit increases 107" M8 to 129" with no case machining required Big bore 4.320" cylinder with 11.0:1 forged pistons S&S oil pump/cam plate Passage plugs are removable for servicing Independent...

Wrinkle Black w/ Highlighted Fins 4.250" bore Updated profile with stock bolt pattern 4.840" Made in the USA Works with stock crankcases. Requires S&S stroker flywheel to achieve 131" displacement (sold seperately). 131" cam...

Black Granite w/ Highlighted Fins 4.250" bore Updated profile with stock bolt pattern 4.840" Made in the USA Works with stock crankcases. Requires S&S stroker flywheel to achieve 131" displacement (sold seperately). 131" cam...

Wrinkle Black w/o Highlighted Fins 4.250" bore Updated profile with stock bolt pattern 4.840" Made in the USA Works with stock crankcases. Requires S&S stroker flywheel to achieve 131" displacement (sold seperately). 131" cam...

Wrinkle Black w/ Highlighted Fins Original engine serial numbers are retained MLS (Multi-Layered Steel) head gaskets Retains stock engine height Stock bolt pattern Works with stock crankcase. Not compatible with VVT models. Compatible...

Black Granite w/ Highlighted Fins Original engine serial numbers are retained MLS (Multi-Layered Steel) head gaskets Retains stock engine height Stock bolt pattern Works with stock crankcase. Not compatible with VVT models. Compatible...

Wrinkle Black w/o Highlighted Fins Original engine serial numbers are retained MLS (Multi-Layered Steel) head gaskets Retains stock engine height Stock bolt pattern Works with stock crankcase. Not compatible with VVT models. Compatible...