S&S Super Stock Generator Style Crankcase Assembly

S&S Super Stock Generator Style Crankcase for Harley Davidson

S&S Superstock crankcases, made from 356-T6 aluminum, are much stronger than the OEM case. OEM cases can / may break in high performance or even stock applications, as many of us have found out the hard way. These S&S Superstock cases can be used for both stock replacement and racing applications.

The S&S crankcases offer substantial time savings when building. These cases come set up with sprocket shaft Timken main bearing races and cam needle bearings installed as well as pinion shaft main bearing race pressed in and line-honed. Additional parts that are supplied include Timken sprocket shaft bearings, cylinder studs, nickel plated case bolts, crankcase fittings, oil pressure sensor, timing & magnetic crankcase drain plugs.

The flywheel scrapers are machined to match the original 8-1/2" diameter flywheels. S&S cases maximize crankcase oil scavenging efficiency by using a ported design breather passageway.

S&S cases are clearanced up to and including 5" stroke, no additional clearancing for strokers will be necessary. 

Note: Crankcases uses Timken style sprocket shaft bearings and 1958 and later pinion bearings (will not accept 1957 and earlier flywheels). For all 36-55 Big Twin applications 58-81 pinion shaft (Customhoj A404-414809) & 55-64 splined sprocket shafts (Customhoj A401-414806) can be used with S&S flywheels, which all have a 6° shaft taper with keyway.

S&S Super Stock Crankcase Installation Instructions available here.

Features:

• S&S cases come complete with assembly instructions.
• Cast from A356 T-6 heat-treated aluminum alloy
• All races are line-honed and breather cavity is precision-machined to optimize breather timing for maximum oil scavenging
• Uses Timken style sprocket shaft bearings and 1958 and later pinion bearings (will not accept 1957 and earlier flywheels)
• Machined for stock 3,4375” cylinders and tapped 1/4”-20 for gear covers, oil pump, tappet guides, timer and timer advance
• Drilled for 5/16” generator mounting bolts
• Additional parts included:
• Crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, top end oil screen spring and plug, sprocket shaft Timken bearing assembly, oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump shaft bushings and installation instructions

Oil pump compatibility:

• For 36-69 S&S crankcases use 36-72 S&S oil pump (Customhoj A922-422327)