Super Stock® Generator Style Crankcases For 1936-'47 Big Twins with 3 5/8" Bore - Natural

The Super Stock^® generator style crankcases are designed with a stock like original appearance. This gives the engine builder an alternative to attempting costly repairs on fatigued, broken, worn-out stock crankcases. In spite of the stock appearance, these cases incorporate updated design features that improve overall engine strength and reliability.

FITS

• 1936–'47 knucklehead engines with tin primary
• 1948–'64 panhead engines with tin primary
• 1965–'69 panhead & generator shovelhead with alloy primary
• Custom – alternator/generator

Features and Benefits:

• Pre-clearanced for strokes up to and including 5"
• Motor mounts on crankcases for knucklehead engines are machined to fit stock 1936–'47 frames. An adapter plate is included for 1948 and later style frames
• All cases are designed for late style generator (two brush type) with 5?16" mounting bolts to eliminate early generator cradle/mounting strap bosses for simplicity and economics
• Use more readily available 1/4"-20 thread fasteners to mount gearcover, oil pump, tappet guides, timer, and timer advance bracket, except KN replacement
• Timken^® sprocket shaft main bearing, in all years, instead of stock straight roller bearings – resulting in better flywheel assembly stability, placement, and longer engine life.