Engine

A lot of riders have already invested in performance upgrades for their stock engine by the time they are ready to move up to a complete big inch e...

A lot of riders have already invested in performance upgrades for their stock engine by the time they are ready to move up to a complete big inch e...

Features & Benefits:- * Fits Both Stock Twin Cam 96ci & 103ci bolt patterns. * Engines are fully assembled up to the intake port face, ther...

Features & Benefits:- * Fits Both Stock Twin Cam 96ci & 103ci bolt pattern. * Engines are fully assembled up to the intake port face, there...

Features & Benefits:- * Super Stock Ignition. * 2 Year Warranty. * 3-5/8" Bore x 4-1/2" Stroke. * 8.5:1 Compression Ratio with Forged Pistons. ...

Features & Benefits:- * Super Stock Ignition. * 2 Year Warranty. * 3-5/8" Bore x 4-1/2" Stroke. * 8.5:1 Compression Ratio. * Forged Pistons. * ...

Introducing the next generation of Proven Performance for your 2018-2024 H-D® Softail® Models, the MK136B Engine This is the newest version of the ...

S&S is offering V-Series engines for 1984-'99 big twins without fuel or ignition systems. So if you have already added a performance carburetor...

Features & Benefits:- * Forged rocker arms. * High performance hydraulic lifters. * .585" lift dual valve springs. * Flat top cast pistons. *...

Features & Benefits:- * Forged rocker arms. * High performance hydraulic lifters. * .585" lift dual valve springs. * Flat top cast pistons. *...

S&S is offering V-Series engines for 1984-'99 big twins without fuel or ignition systems. So if you have already added a performance carburetor...

S&S is offering V-Series engines for 1984-'99 big twins without fuel or ignition systems. So if you have already added a performance carburetor...

S&S is offering V-Series engines for 1984-'99 big twins without fuel or ignition systems. So if you have already added a performance carburetor...

S&S is offering V-Series engines for 1984-'99 big twins without fuel or ignition systems. So if you have already added a performance carburetor...

By taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, KPMI has developed ovate wire Beehive st...

By taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, KPMI has developed ovate wire Beehive st...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

White Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics. We fully CNC machine our Whit...

KPMI cylinder alignment dowels are machined from steel and receive a black oxide surface treatment. OEM Cylinder Alignment Dowels are often galled ...

Designed for the Harley-Davidson® Milwaukee-Eight engine, this dowel can also serve as a multi-purpose alignment pin. Our dowel incorporates OEM el...

Features & Benefits * Works well with cams up to .615" lift * High Performance conical single wire spring * Kit Includes: Springs, Top Collars...

Features & Benefits:- * Works well with cams up to .605" lift. * High Performance conical single wire spring. * Kit Includes Springs, Top Colla...

FEULING ENDURANCE BEEHIVE valve springs are a direct bolt in replacement, no spring seat or rocker cover machining required. Endurance springs are ...

* Stock length & head diameter * Triple Groove * Extreme Duty * High Flow * one piece forged racing grade stainless steel alloy. * Black Nitri...

* Stock length & head diameter * Triple Groove * Extreme Duty * High Flow * one piece forged racing grade stainless steel alloy. * Black Nitri...

* Designed for Harley-Davidson Milwaukee-8 heads * Use with OEM style Viton Guide Seal * Manganese-Bronze * High temp viton o-ring seal * Smooth le...

* Designed for Harley-Davidson Milwaukee-8 heads * Use with OEM style Viton Guide Seal * Manganese-Bronze * High temp viton o-ring seal * Smooth le...

Features & Benefits:- * OEM Replacement. * Stock length & head diameter * Triple Groove * Extreme Duty * High Flow * one piece forged racin...

* Stock length & head diameter * Triple Groove * Extreme Duty * High Flow * one piece forged racing grade stainless steel alloy. * Black Nitri...

Features & Benefits:- STAINLESS 12 POINT HEAD BOLTS UHL 3.215, QTY. 8 * Kit includes 8 head bolts, moly assembly lubricant and thread sealant *...

Features & Benefits:- * Heat Treated 8640 Steel. * 200,000 psi Ultimate Tensile Strength. * 14% increases in strength over stock. * Stronger ma...

* Requires permanent modification of left lower fairing * Installation time is Approx 6 Hours This UltraCool Oil Cooler 3.0 kit is designed for 20...

The UltraCool Oil Cooler Kit is the ultimate solution for 2024up M8 Touring models with liquid Center-Cooled cylinder heads. Despite the improvemen...

Features & Benefits:- * Get a much cooler running oil cooled M8 in about 15 minutes ! * Takes 15 minutes to install. * Completely plug and pl...

Features & Benefits:- * Beautiful grill cover hides and protects the heat exchanger and fans * 3.0 oil adapter and thermal switch with waterpro...

Note: Does not fit CVO Touring Models 2023up or Street Glide & Road Glide 2024up (Gen 2 heads with Centre Cooling) Features & Benefits:- * ...

Features & Benefits:- * Draws heat from the rear cylinder and exhaust away from the rider and towards the ground * Helps maintain optimal engin...

Note: Does not fit CVO Touring Models 2023up or Street Glide & Road Glide 2024up (Gen 2 heads with Centre Cooling) Features & Benefits:- * ...

Features & Benefits:- * Beautiful grill cover hides and protects the heat exchanger and fans * 3.0 oil adapter and thermal switch with waterpro...

Features & Benefits:- * Beautiful grill cover hides and protects the heat exchanger and fans * 3.0 oil adapter and thermal switch with waterpro...

Features & Benefits:- * Beautiful grill cover hides and protects the heat exchanger and fans * 3.0 oil adapter and thermal switch with waterpro...

Features & Benefits:- * Beautiful grill cover hides and protects the heat exchanger and fans * 3.0 oil adapter and thermal switch with waterpro...