S&S CYCLE Evolution Big Twin Engine Case with 4.000" Bore - Part 31-0047 Stands Ensure these modifications are accounted

Ensure these modifications are accounted for during your custom build

breath deflector

a breath deflector and aero skirt (chin curtain) to reduce turbulence and fogging

easy fastening

S&S CYCLE Evolution Big Twin Engine Case with 4.000" Bore - Part 31-0047 Stands Ensure these modifications are accountedEngine Case +4. 000" Bore Special Application Evolution Big Twin The S&S CYCLE 31 0047 engine case is engineered for high performance Evolution Big Twin motorcycles, offering a custom fit for cylinder bores up to 4. 000 inches. Crafted to accommodate larger stroke lengths of up to 5. 000 inches, this case features a moved outward cam chest by 0. 250 inches, providing enhanced clearance for performance builds. The design ensures optimal oil scavenging