S&S Cycle Twin Cam 88A Engine Case - 3.750 Inch Bore, Stock Stud Pattern, Wrinkle Black Finish (Part 31-0172A)

Engine Case - 3.750" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black -Twin Cam

The S&S Cycle Twin Cam 88A engine case is designed for stock Harley-Davidson chassis with carbureted or EFI systems, providing a reliable and robust foundation for high-performance builds. Crafted with greater overall strength than stock crankcases, this engine case ensures durability and long-lasting performance for demanding riding conditions. The incorporation of strong Timken®-style sprocket shaft bearings enhances reliability and smooth operation, making it suitable for both street and performance applications. All passages between the crankcase cam support plate are O-ring sealed to prevent oil leaks and maintain proper lubrication, ensuring engine integrity over time. Compatible with most stock components, this case simplifies installation and maintenance, helping technicians achieve optimal engine assembly. It includes an S&S crankcase breather reed valve specifically designed to eliminate oil carry-over and oil scavenging issues, which enhances engine cleanliness and reduces maintenance needs. The rear motor mount bolts directly to the stock transmission, providing a seamless connection that is fully compatible with the stock primary drive system, charging system, and other factory components. Manufactured in the USA, this engine case is a high-quality component suitable for skilled technicians who understand the importance of precise assembly. Proper clearance checks and adherence to assembly specifications are essential for optimal performance and reliability, making this part ideal for custom builds or replacement in existing Harley-Davidson motorcycles.

Features:

• Greater overall strength than stock crankcases for enhanced durability

• Strong Timken®-style sprocket shaft bearings for reliable operation

• O-ring sealed passages between the crankcase cam support plate to prevent leaks

• Includes S&S crankcase breather reed valve to eliminate oil carry-over and scavenging issues

• Compatible with most stock components for easy installation

• Rear motor mount bolts directly to the stock transmission, ensuring proper alignment

• Fully compatible with stock primary, charging system, and other components

• Made in the USA with high manufacturing standards