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S&S CYCLE Super Stock® Big Bore Engine Case - 3.625" for Big Twin with EFI Compatibility
Regular price $1,995.95 USD
Engine Case - Super Stock® Big Bore - 3.625" - Big Twin The S&S CYCLE Super Stock® Big Bore Engine Case (Part...
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Engine Case - Super Stock® Big Bore - 3.625" - Big Twin
The S&S CYCLE Super Stock® Big Bore Engine Case (Part Number 31-0004) is engineered for high-performance Harley-Davidson Big Twin engines with a 3.625-inch bore size. Crafted from durable materials, this case accommodates strokes up to 5 inches and most stock-length connecting rods, making it suitable for a wide range of custom builds and performance upgrades. The case is precision-machined to accept an oil filter assembly that mounts on the front, ensuring easy maintenance and optimal oil flow. All races are line-honed for smooth operation, and the breather cavity is carefully machined to enhance breather timing, resulting in maximum oil scavenging and efficient engine breathing. This comprehensive kit includes crankcase bolts, washers, nuts, cylinder mounting studs, and essential fittings, providing everything needed for a complete and professional installation. Designed for EFI fitment, this case features robust components such as a Timken® bearing assembly for the sprocket shaft, oil seal, oil pressure switch, oil screen, and a cam needle bearing assembly, ensuring reliable performance under demanding conditions. Made in the USA, the S&S CYCLE Super Stock® Big Bore Engine Case combines precision engineering with quality craftsmanship, making it an ideal choice for serious enthusiasts seeking a high-performance upgrade or replacement part for their Harley-Davidson Big Twin engine.
Features:
- Big bore case designed for 3.625-inch cylinders, suitable for strokes up to 5 inches and most stock-length connecting rods
- Machined to accept front-mounted oil filter assembly for easy maintenance
- Line-honed races and precision-machined breather cavity for optimal breather timing and oil scavenging
- Includes all necessary mounting hardware: crankcase bolts, washers, nuts, and cylinder studs
- Fitted for EFI engines with high-quality components including Timken® bearing assembly, oil seal, and oil pressure switch
- Comprehensive kit with breather fittings, oil line fittings, oil screen, and installation instructions
- Manufactured in the USA with durable, precision-engineered materials
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