S&S Cycle Engines & Performance Parts

S&S Cycle has built proven horsepower in Viola, Wisconsin since 1958, and Twisted Choppers carries the S&S catalog in depth. Choose a complete S&S engine, from the V124 Evolution long block and KN93 Knucklehead to the MK136B for M8 Softail, or build your own with S&S cams, gear drives and oil pumps, cylinder heads and pushrods, cases, rods and flywheels, forged pistons, and carburetor and throttle body parts. The parts serious Harley-Davidson builders trust.

Showing 1–24 of 278 resultsSorted by popularity

S&S Cycle Sprocket Shaft Spacer for T-Series Engine Installation in Touring Models
Rated 5.00 out of 5
$71.95
This spacer is required for S&S T-series engine installations in Harley-Davidson Touring models to ensure charging system compatibility. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle Stealth Air Cleaner Kit Fits Indian
$195.95
A genuine S&S Cycle stealth air cleaner kit for service-replacement use on the host S&S Cycle application; This air cleaner fits the following Indian Scout and Victory models. Made in the U.S.A. by S&S Cycle.
S&S Cycle T124 Long-Block Engine Fits Harley-Davidson Twin Cam Dyna and Touring 1999-2017
Rated 5.00 out of 5
Price range: $8,441.95 through $8,599.95
A complete S&S Cycle T124 Twin Cam long-block engine in four finishes and two cam grinds across three platform groups, compatible with select 1999-2017 Harley-Davidson Twin Cam Dyna and Touring chassis.
S&S Cycle Oil Line Kit Fits Harley-Davidson Touring 2007-2016
$195.95
This oil line kit is required for S&S T-series engine or crankcase installation in 2007-2016 Harley-Davidson Touring FLH and FLT models, excluding twin-cooled configurations.
S&S Cycle Transmission Drilling Fixture Fits Harley-Davidson Touring Twin Cam 2007-2016
$293.95
This drilling fixture kit is required for T-series engine installation in 2007-2016 Harley-Davidson Touring models when replacing a factory Twin Cam engine.
S&S Cycle Oil Pump Check Ball
$4.95
This stainless steel ball replaces the .375-inch check valve ball in S&S and OEM big twin oil pump check valve assemblies. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle V111 Evolution Long-Block Engine Fits Harley-Davidson Big Twin 1984-1999
$7,999.95
A complete S&S Cycle V111 Evolution stroker 111 cubic-inch long-block engine in Wrinkle Black, all-Black Edition, or Natural finish, compatible with 1984-1999 Harley-Davidson Evolution Big Twin chassis and custom frames built for alternator-style Evolution engines.
S&S Cycle Long-Block Installation Kit Fits Harley-Davidson Dyna 2007-2017
$699.95
This oil line kit is required for S&S T-series engine or crankcase installation in 2007-2017 Harley-Davidson Dyna models. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle T143 Long-Block Engine Fits Harley-Davidson Twin Cam Dyna and Touring 1999-2017
Rated 5.00 out of 5
$10,595.95
A complete S&S Cycle T143 Twin Cam long-block engine in four finishes with the 635 cam grind across three platform groups, compatible with select 1999-2017 Harley-Davidson Twin Cam Dyna and Touring chassis; S&S B3 intake required.
S&S Cycle T111 Long-Block Engine Fits Harley-Davidson FXD FLH/FLT 1999-2016
$8,295.95
A complete S&S Cycle T111 Twin Cam long-block engine in Silver, Wrinkle Black with Chrome, or all-Black Edition finish with 585 gear-drive Easy Start cams, compatible with Harley-Davidson Twin Cam 88 Dyna 1999-2005, Twin Cam 88 Touring 1999-2006, and oil-cooled Twin Cam 96/103 Touring 2007-2016.
S&S Cycle Oil Pump Compression Return Fitting Fits Harley-Davidson Big Twin 1984-1999
$33.95
This compression return fitting is designed to fit S&S Cycle HVHP Oil Pump installations on the following Harley-Davidson models. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle Heavy Duty Clutch Diaphragm Spring Fits Harley-Davidson Big Twin 1998-2017
$59.95
A heavy-duty S&S Cycle clutch diaphragm spring at 380 pounds of clamping force, 25 percent stronger than stock, compatible with 1998-2016 Harley-Davidson Big Twin chassis fitted with the standard diaphragm clutch.
S&S Cycle 100 Power Package Fits Harley-Davidson Twin Cam 88 1999-2006
$3,396.95
A complete S&S Cycle 100 cubic-inch big-bore Power Package conversion kit for the Twin Cam 88 engine, available in Silver or Wrinkle Black cylinder finish with chain-drive or gear-drive 585 Easy Start cams, compatible with 1999-2006 Harley-Davidson Big Twin.
S&S Cycle P-93 Series Engine Fits Harley-Davidson Big Twin 1970-1999
Rated 5.00 out of 5
$11,495.95
This engine is designed to fit installation in 1970-1999 custom-built Harley-Davidson Big Twin chassis using alternator or generator-style primary cases.
S&S Cycle Timken Sprocket Shaft Bearings Fits Harley-Davidson Big Twin Evolution 1984-2017
$99.95
This Timken bearing fits 1984-2017 Evolution Big Twin as an OEM replacement and 2000-2017 Twin Cam Big Twin as a Timken conversion. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle Replacement Stealth Air Filter for Super Stock Air Cleaners
$61.95
This filter is a direct replacement for all S&S Super Stock Stealth Air Cleaner kits. Made in the U.S.A. by S&S Cycle for service-replacement use. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle Pump Pushrod for Super E and G Carburetors
$11.95
This is a replacement part for S&S Super E and Super G carburetors. Made in the U.S.A. by S&S Cycle for service-replacement use. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle Replacement Crankcase Breather Hose Fits Harley-Davidson Big Twin 1991-2006
$14.95
This crankcase breather hose fits Harley-Davidson Big Twin engines from 1991 through 2006. Made in the U.S.A. by S&S Cycle for service-replacement use.
S&S Cycle VOES Fitting Cap
$6.95
A single S&S Cycle 3/16 inch rubber VOES fitting cap measuring 3/16 x 5/16 x 1/2 inch, used to cap an S&S Vacuum Operated Electric Switch fitting during service or storage.
S&S Cycle T124 66mm Induction Kit Fits Harley-Davidson Twin Cam Dyna and Touring 2006-2017
Price range: $1,249.95 through $1,599.95
A complete S&S Cycle 66mm induction kit for the S&S T124 engine, available in cable-operated or throttle-by-wire configurations, compatible with select 2006-2017 Harley-Davidson Twin Cam Dyna and Touring chassis.
S&S Cycle B2 Cylinder Head to 2-Inch Exhaust Header Adapter Kit
$144.95
The S&S Cycle adapter kit that connects 2-inch exhaust headers to S&S B2 cylinder heads, letting builders retain the existing 2-inch header pipes during a B2 cylinder head upgrade.
S&S Cycle T143 70mm Induction Kit Fits Harley-Davidson Twin Cam Dyna and Touring 2006-2017
Price range: $1,744.95 through $2,101.95
A complete S&S Cycle 70mm induction kit for the S&S T143 engine, available in cable-operated or throttle-by-wire configurations, compatible with select 2006-2017 Harley-Davidson Twin Cam Dyna and Touring chassis.
S&S Cycle V80 Long-Block Engine Fits Harley-Davidson Evolution Big Twin 1984-1999
$7,099.95
A complete S&S Cycle V80 80 cubic-inch Evolution long-block engine in Natural or Wrinkle Black finish, compatible with 1984-1999 Harley-Davidson Evolution Big Twin chassis and custom frames built for alternator-style Evolution engines.
S&S Cycle Oil Pump Mating Drive Gear Fits Harley-Davidson Big Twin 1973-1999
Rated 5.00 out of 5
$69.95
A single S&S Cycle oil pump mating drive gear shipped as ONE gear per order; pair with S&S 33-4230 (the 24-tooth drive gear, sold separately) or an OEM equivalent to complete the oil pump drive set on a 1973-1999 Harley-Davidson Big Twin engine.

Showing 1–24 of 278 resultsSorted by popularity