S&S CYCLE Super Stock 3.5-inch Engine Case for Evolution Big Twin - Part 31-0052

Engine Case - Super Stock® - 3.500" - Evolution Big Twin

The S&S CYCLE Super Stock engine case is designed for Evolution Big Twin motorcycles, offering a robust and precisely machined component for performance enthusiasts. Crafted with a 3.5-inch bore, this case is suitable for any stroke up to and including 5 inches, and compatible with most stock-length connecting rods, ensuring versatile compatibility. The case features a machined oil filter mounting on the front, simplifying maintenance and enhancing oil filtration efficiency. All races are line-honed for smooth operation, and the breather cavity is meticulously machined to optimize breather timing, which improves oil scavenging and overall engine longevity.
Included in the kit are essential components such as crankcase bolts, washers, nuts, cylinder mounting studs, a timing hole plug, and a magnetic drain plug. The kit also provides various breather and oil line fittings, an oil pressure switch, oil screen, spring and plug, sprocket shaft Timken® bearing assembly, oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump drive shaft bushing, and comprehensive installation instructions.
Designed with EFI fitment in mind, this case ensures seamless integration with electronic fuel injection systems, enhancing engine performance and reliability. Made in the USA, the S&S CYCLE Super Stock engine case combines precision engineering with durable construction, making it an excellent choice for custom builds or performance upgrades on Evolution Big Twin motorcycles. Its high-quality manufacturing and detailed machining processes make it a reliable foundation for high-performance engines, delivering optimal oil management and durability for demanding riding conditions.

Features:

• 3.5-inch bore designed for strokes up to 5 inches and most stock-length connecting rods

• Machined to accept an oil filter assembly mounted on the front of the case

• Line-honed races for smooth operation and longevity

• Precision-machined breather cavity for optimized breather timing and maximum oil scavenging

• Includes comprehensive kit with bolts, fittings, bearings, seals, and installation hardware

• Designed for EFI fitment to ensure compatibility with electronic fuel injection systems

• Made in the USA with high-quality manufacturing standards