S&S CYCLE Super Stock Engine Case for Evolution Big Twin 3.500" - Part Number 31-0005

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

The S&S CYCLE Super Stock engine case (Part Number 31-0005) is designed for high-performance Evolution Big Twin motorcycles with a 3.5-inch bore. Crafted in the USA, this case is machined to accept an oil filter assembly mounted on the front of stock motor cases, ensuring compatibility with a wide range of stock-length connecting rods up to 5 inches. The precision-machined breather cavity and line-honed races optimize breather timing, which maximizes oil scavenging and enhances engine efficiency.
The kit includes essential components such as crankcase bolts, washers, nuts, cylinder mounting studs, a 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 detailed installation instructions. These features facilitate a straightforward installation process and reliable engine operation.
Machined for EFI fitment, this engine case ensures compatibility with electronic fuel injection systems, providing a clean and efficient setup for performance-oriented builds. Constructed with durability and precision in mind, the case is built to withstand demanding riding conditions and long-term use. Whether for a custom build or an upgrade, the S&S CYCLE Super Stock engine case offers a perfect blend of quality, performance, and ease of installation, making it a top choice for enthusiasts seeking to maximize their Big Twin's potential.

Features:

• Designed for Evolution Big Twin motorcycles with a 3.5-inch bore

• Machined to accept front-mounted oil filter assembly

• Line-honed races and precision-machined breather cavity for optimal oil scavenging

• Includes comprehensive hardware and fittings for installation

• Machined for EFI compatibility

• Made in the USA for quality and durability