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S&S Evolution Big Twin Performance Cylinder Heads – Engine
Product info
- Item number
- 233765
- Position
Exactly the same cylinder heads as S&S uses in their complete 1,340cc/80CI V-Series engines. Feature 1.9" diameter intake valves and 1.605" diameter exhaust valves and give increased flow compared to stock Harley heads. These cylinder heads can be used with stock 3 1/2" bore, as well as 3 5/8" Big Bore with stock style flat topped pistons. The version with 82cc chamber give a 8.4:1 compression where stock heads give 8.5:1 compression. Heads with 76cc chambers give a 8.8:1 compression. Valve springs are compatible with up to .585" lift cams. Heads come with valves and valve springs installed and are sold in sets for front and rear.
Wrinkle black, 76cc chamber
Head,Kit,Performance Replacement,.585" S
- Category: Cylinder Heads
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