FREE SHIPPING NATIONWIDE

Collection:

Crankcase & Bottom End - 1936-99

24 products

Shop the range of aftermarket motorcycle engine products at Pro Class Custom Parts.

Categories
Price
  • -
Show all Price
Regular price $471.99
Sale price $471.99
Regular price
Unit price
per 
Features & Benefits:- * Includes 1 x Front Rod Race # SS34-4005 * Includes 2 x Rear Rod Race # SS34-4006 * Includes 2 x Wrist Pin Bush # SS34-4007 * Replaces OEM #’s 24356-36A 24345-36A & ...
Regular price $4,034.99
Sale price $4,034.99
Regular price
Unit price
per 
Features & Benefits:- * Wrinkle Black. * Perfect for stock replacement & high performance applications. * These crankcases offer some unique features. * Besides being machined for a crank...
Sold Out
Regular price $4,034.99
Sale price $4,034.99
Regular price
Unit price
per 
Features & Benefits:- * Wrinkle Black. * Perfect for stock replacement & high performance applications * These crankcases offer some unique features. * Besides being machined for a crank ...
Regular price $3,890.99
Sale price $3,890.99
Regular price
Unit price
per 
S&S has been making stock bore stroker kits since the early 1960s. They’re still popular today due to the excellent power gains for the money, as well as the easy installation. Stock bore stro...
Sold Out
Regular price $4,215.99
Sale price $4,215.99
Regular price
Unit price
per 
Features & Benefits:- * Can also be used to upgrade your 1200cc Engine 1973-1980 to 1340cc/80ci Engine. Tech Tips:- * Upgrading your 1200cc Engine 1973-1980 to 80ci/1340cc Engine requires the...
Regular price $3,575.99
Sale price $3,575.99
Regular price
Unit price
per 
Features & Benefits:- * Stock Replacement. * 1990-1999 models require purchase of pinion shaft conversion kit # SS33-4148. Proudly Made in the USA by S&S Cycle ! MFR PART No: 32-2239 ROL...
Regular price $3,670.99
Sale price $3,670.99
Regular price
Unit price
per 
Features & Benefits:- * The S&S Super Stock alternator style crankcases are perfect for stock replacement & for high performance applications. * Pre-clearanced for strokes up to &...
Regular price $1,402.99
Sale price $1,402.99
Regular price
Unit price
per 
Features & Benefits:- * 7.440″ Rod Length. * Sold as a Pair. Tech Tips:- * Torque crankpin nuts to H-D specs 180-210 ft/lbs for both OEM & S&S forged flywheels. * Greater torque will ...
Regular price $1,332.99
Sale price $1,332.99
Regular price
Unit price
per 
Features & Benefits:- * 7.440″ Rod Length. * Sold as a Pair. Tech Tips:- * Torque crankpin nuts to H-D specs 180-210 ft/lbs for both OEM & S&S forged flywheels. * Greater torque will ...