Pistons - Rings - Cylinders

Transform the 107" oil-cooled M8 into 129" with no case machining required. Big bore cylinders come with matching cam, cam plate and oil pump. Magnet in cam chest to help prevent debris from entering oil pump. Independent scavenge sections for...

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...

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...

Updated profile to fit M8 models including the VVT models Big bore bolt-on kit increases 107" M8 to 129" with no case machining required S&S oil pump/cam plate Passage plugs are removable for servicing Independent scavenge sections...

Updated profile to fit M8 models including the VVT models Big bore bolt-on kit increases 107" M8 to 129" with no case machining required S&S oil pump/cam plate Passage plugs are removable for servicing Independent scavenge sections...

Updated profile to fit M8 models including the VVT models Big bore bolt-on kit increases 107" M8 to 129" with no case machining required S&S oil pump/cam plate Passage plugs are removable for servicing Independent scavenge sections...

Updated profile to fit M8 models including the VVT models Big bore bolt-on kit increases 107" M8 to 129" with no case machining required S&S oil pump/cam plate Passage plugs are removable for servicing Independent scavenge sections...

Updated profile to fit M8 models including the VVT models Big bore bolt-on kit increases 107" M8 to 129" with no case machining required S&S oil pump/cam plate Passage plugs are removable for servicing Independent scavenge sections...

Updated profile to fit M8 models including the VVT models Big bore bolt-on kit increases 107" M8 to 129" with no case machining required S&S oil pump/cam plate Passage plugs are removable for servicing Independent scavenge sections...

Wrinkle Black w/ Highlight Fins Big-bore bolt-on kit increases 107" M8 to 129" with no case machining required 4.32" bore cylinders with 11.0:1 compression ratio forged pistons S&S oil pump/cam plate with blue anodized finish ...

Wrinkle Black w/ Highlight Fins Big-bore bolt-on kit increases 107" M8 to 129" with no case machining required 4.32" bore cylinders with 11.0:1 compression ratio forged pistons S&S oil pump/cam plate with blue anodized finish ...

Wrinkle Black w/ Highlight Fins Big-bore bolt-on kit increases 107" M8 to 129" with no case machining required 4.32" bore cylinders with 11.0:1 compression ratio forged pistons S&S oil pump/cam plate with blue anodized finish ...