Pistons - Rings - Cylinders

Bolt-on kit Updated fins No case machining required Forged pistons Made in the USA Includes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springs Oil Pump/Cam...

Bolt-on kit Updated fins No case machining required Forged pistons Made in the USA Includes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springs Oil Pump/Cam...

Bolt-on kit Updated fins No case machining required Forged pistons Made in the USA Includes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springs Oil Pump/Cam...

Bolt-on kit Updated fins No case machining required Forged pistons Made in the USA Includes oil pump/cam plate, pushrods, tappets, tappet cuffs, 550 camshaft, valve springs Oil Pump/Cam...

Bolt on big bore kits mean easy installation with no machining and no rebalancing S&S bolt-in cams and premium tappets make the most of the added displacement Cams are .482" lift and 240°...

Bolt on big bore kits mean easy installation with no machining and no rebalancing S&S bolt-in cams and premium tappets make the most of the added displacement Cams are .482" lift and 240°...

Wrinkle Black w/ Highlighted Fins 4.250" bore Updated profile with stock bolt pattern 4.840" Made in the USA Works with stock crankcases.

Black Granite w/ Highlighted Fins 4.250" bore Updated profile with stock bolt pattern 4.840" Made in the USA Works with stock crankcases.

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.

All piston kits come with two pistons, rings, wrist pins, and wrist pin keepers For 128" M8 motors +0.010" bore oversize Compression ratios listed are approximate and are calculated using the...

Black w/ Highlights 114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kit Bolt-in kit, case maching not required Forged pistons Includes oil pump/cam plate, pushrods with chrome...

Black w/o Highlights 114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kit Bolt-in kit, case maching not required Forged pistons Includes oil pump/cam plate, pushrods with chrome...