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491 products

$18,434.99

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 or an EFI throttle body and tuner to your stock ...

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$18,389.99

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 or an EFI throttle body and tuner to your stock ...

Sold Out

$18,434.99

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 or an EFI throttle body and tuner to your stock ...

Sold Out

$19,069.99

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 engine. Wouldnt it be nice to be able to save som...

$19,127.99

This S&S 111 cubic inch T111 Long Block engine fits 2007-2016 HD touring bikes except Twin-Cooled models. Long Block engines do not include a fuel or ignition system, so If you already have a ...

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$19,069.99

This S&S 111 cubic inch T111 Long Block engine fits 2007-’16 HD touring bikes except Twin-Cooled models. Long Block engines do not include a fuel or ignition system, so If you already have a l...

117ci Big Bore Kit – Black. Fits Twin Cam 2007-2017

$3,887.99

* 117″ Standard Compression – Flat Top Pistons * Note: Crankcases must be bored to accept the larger 4-1/8″ bore cylinders * Compression Ratios: 85cc Stock Heads = 10.9:1 89cc S&S Heads = 10.5...

$3,887.99

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1200cc Big Bore Kit – Silver. Fits Sportster 1986-2021 with 883cc Engine.

$2,677.99

Features & Benefits:- * Will Not Fit XR1200 * Includes silver cylinders. * Includes MLS Head Gaskets, Base Gaskets & Exhaust Gaskets. * Includes assembly lube & instructions. * No mac...

1200cc Big Bore Kit – Wrinkle Black. Fits Sportster 1986-2021 with 883cc Engine.

$2,677.99

Features & Benefits:- * Will Not Fit XR1200 * Includes Black Cylinders. * Includes MLS Head Gaskets, Base Gaskets & Exhaust Gaskets. * Includes Assembly lube & Instructions. * No mach...

1200cc Hooligan Big Bore Kit – Black. Fits Sportster 2000up with 883cc Engine.

$4,304.99

Features & Benefits:- * Will Not Fit XR1200 * Wrinkle Black Finish. * Big Bore Kit Increase 883cc Engines to 1200cc. * Whether youre racing Hooligan flat-track or just want more power, the S&...

$477.99

Features & Benefits:- * The machined displacement looks killer against the gloss black powder coat finish of the cover & anybody who sees itll know better than to mess with a guy with tha...

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$19,078.99

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 or an EFI throttle body and tuner to your stock ...

Sold Out

$19,078.99

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 or an EFI throttle body and tuner to your stock ...

Sold Out

$13,434.99

Features & Benefits:- * Fits Dyna 2006-2017 & Touring Models 2007-2016 with Twin Cam A Engine. EXCEPT Twin-Cooled/Water Cooled models * This 124ci big bore/stroker Hot Set Up Kit transform...