S&S Cycle Super Stock Engine Case - Black - 31-0055

Upgrade your Harley-Davidson engine with the S&S Cycle Super Stock® Alternator Style Engine Case. This high-performance engine case is designed for durability and optimized oil scavenging, ensuring your engine runs smoothly and efficiently. Proudly made in the USA, this case provides a solid foundation for your high-performance build.

Description

The S&S Cycle Super Stock® engine case is machined to accept an oil filter assembly that mounts on the front, similar to stock motor cases. All races are line-honed, and the breather cavity is precision-machined to optimize breather timing for maximum oil scavenging. Designed for a 3.5" stock bore cylinder, this case accommodates strokes up to 5" and most stock length connecting rods. It's also machined for EFI fitment, making it compatible with modern fuel injection systems. Constructed from A356 T-6 aluminum alloy and powder-coated black, this engine case delivers exceptional strength and a sleek appearance.

Features & highlights

• Designed for 3.5" stock bore cylinders and strokes up to 5".
• Precision-machined breather cavity optimizes oil scavenging for improved engine performance.
• Machined to accept a front-mounted oil filter assembly, similar to stock cases.
• Line-honed races ensure precise fit and smooth operation.
• Compatible with EFI (Electronic Fuel Injection) systems.
• Includes essential hardware for installation.
• Made in the USA from high-quality A356 T-6 aluminum alloy.

Technical specifications

• Brand: S&S Cycle
• Bore Size: 3.5"
• Material: A356 T-6 Aluminum Alloy
• Color/Finish: Black, Powder-Coated
• Type: Standard Bore

Important to know

This kit includes 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.