S&S Super Stock Alternator Style Crankcase Assembly

S&S Super Stock Alternator 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: For 84-E85 Evolution Big Twin models you must use a L85-91 style cylinder head bolt kit. These can be ordered separately as A266-407671 (Gardner-Westcott) or A599-892004 (Colony) in standard lengths only.

S&S Super Stock 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
• Crankcases are available for 3.5” stock and 3.625” big bore motors for any stroke up to and including 5” and most stock length connecting rods
• Machined to accept an oil filter assembly that mounts on the front of stock motor cases
• Machined for EFI fitment
• Additional parts included:
• Crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, oil pressure switch, oil screen, spring and plug, sprocket shaft Timken bearing assembly and oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump drive shaft bushing and installation instructions

Oil pump compatibility:

• For 70-91 S&S crankcases use HD oil pump (OEM 26190-73) or 73-91 S&S oil pump (Customhoj A923-422328)
  
• For 92-99 S&S crankcases use HD 92-99 oil pump (OEM 26053-92) or 92-99 S&S (Customhoj A924-422329)