Cruiser

Big Bore Kit Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight to 128" with no case machining required 4-1/4" bore cylinders with 11:1 forged pistons Oil Pump/Cam Plate S&S oil pump/cam plate with blue anodized finish Passage plugs are...

Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required 4-1/4" bore cylinders with 11:1 forged pistons S&S oil pump/cam plate with blue anodized finish Passage plugs are removable for servicing Independent...

Made in the U.S.A. Big Bore Kit 107" to 124" Big bore kit Bolt on kit No case matching required Forged pistons 11:1 Compression ratio Oil Pump/Cam Plate Precision machined from billet aluminum Blue anodized finish Passage plugs removable for servicing...

Made in the U.S.A. Big Bore Kit 107" to 124" Big bore kit Bolt on kit No case matching required Forged pistons 11:1 Compression ratio Oil Pump/Cam Plate Precision machined from billet aluminum Blue anodized finish Passage plugs removable for servicing...

Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required 4-1/4" bore cylinders with 11:1 forged pistons S&S oil pump/cam plate with blue anodized finish Passage plugs are removable for servicing Independent...

Transform the 114" or the 117" oil-cooled M8 into 132" Adjustable pressure relief valve can be adjusted with unit installed in the engine S&S valve springs feature high-performance conical single-wire spring design Big bore cylinders are matched with...

Transform the 114" or the 117" water-cooled M8 into 132" Adjustable pressure relief valve can be adjusted with unit installed in the engine S&S valve springs feature high-performance conical single-wire spring design Magnet in cam chest to help prevent...

Transform the 114" or the 117" oil-cooled M8 into 132" Adjustable pressure relief valve can be adjusted with unit installed in the engine S&S valve springs feature high-performance conical single-wire spring design Big bore cylinders are matched with...

Transform the 114" or the 117" oil-cooled M8 into 132" Adjustable pressure relief valve can be adjusted with unit installed in the engine S&S valve springs feature high-performance conical single-wire spring design Big bore cylinders are matched with...

Transform the 114" or the 117" water-cooled M8 into 132" Adjustable pressure relief valve can be adjusted with unit installed in the engine S&S valve springs feature high-performance conical single-wire spring design Magnet in cam chest to help prevent...

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

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