S&S Cycle 2017 M8 Models Big Bore Top End Guardian Kit - 900-1092

Building your M8 for big power? S&S has the parts you need to bulletproof the top end of your valvetrain in one convenient kit! S&S performance parts are direct replacement for OEM pieces, but are stronger and more durable, giving your M8 the reliability...

S&S Cycle 06-12 Dyna 91cc .064in Manifold Surface Cylinder Heads - Wrinkle Black - 900-0993

Head, Kit, 4-1/8" Bore, Stock Bolt Pattern, .650" Steel, w/o Compression Release Machin, 91cc w/-.064" MF Surface 111".

S&S Cycle 06-12 Dyna 4-1/8in Bore Front Head Assembly - 900-0966

Stock Bolt Pattern, .585" Steel, w/o Compression Release

S&S Cycle PS160GII 60 Degree Billet Rear Head - 900-0824A

S&S Cycle PS160GII 60 Degree Billet Rear Head

S&S Cycle PS160GII 60 Degree Billet Front Head - 900-0823A

S&S Cycle PS160GII 60 Degree Billet Front Head

S&S Cycle 2007+ BT CNC Ported B3 Cylinder Heads For S&S T143 Engines - Wrinkle Black - 900-0803

These S&S® CNC ported B3 cylinder heads are original equipment on S&S® T143 engines. They are set up for 4.425" bore and are machined for the S&S® 4-3/8" cylinder stud pattern. Kit includes front and rear head assemblies complete with S&S® .650" lift...

S&S Cycle 00-06 BT 124in Hot Set Up Kit w/ S&S Cylinder Heads - Wrinkle Black - 900-0565

This 124" big bore/stroker Hot Set Up Kit® transforms a stock 88" engine into a 124" monster. This kit includes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three piece flywheel...

S&S Cycle 99-06 BT 124in Hot Set Up Kit W/ S&S Cylinder Heads - Wrinkle Black - 900-0564

This 124" big bore/stroker Hot Set Up Kit® transforms a stock 88" engine into a 124" monster. This kit includes S&S 4-1/8" bore pistons, big bore cylinders finished in wrinkle black powder coat, a dynamically balanced 4-5/8" stroke three piece flywheel...

S&S Cycle 99-05 BT Super Stock 91cc Cylinder Heads - Wrinkle Black - 900-0480

These S&S® Super Stock® high performance cylinder heads are designed specifically for late production S&S® T111 long block engines for 1999-'05 HD® big twins. 2.000" intake and 1.605" exhaust valves coupled with S&S® ports, supply plenty of air for these...

S&S Cycle 99-05 BT Super Stock 91cc Cylinder Heads - Wrinkle Black - 900-0470

These S&S® Super Stock® high performance cylinder heads are designed specifically for late production S&S® T124 long block engines for 1999-'05 HD® big twins and 1999-'05 engines with S&S® 124" Hot Set Up Kit installed. 2.000" intake and 1.605" exhaust...

S&S Cycle 99-05 BT Super Stock 91cc Cylinder Heads - Silver - 900-0465

These S&S® Super Stock® high performance cylinder heads are designed specifically for late production S&S® T124 long block engines for 1999-'05 HD® big twins and 1999-'05 engines with S&S® 124" Hot Set Up Kit installed. 2.000" intake and 1.605" exhaust...

S&S Cycle 06-16 BT 89cc Head Kit - Wrinkle Black - 900-0412

S&S Cycle 06-16 BT 89cc Head Kit - Wrinkle Black