S&S Cycle
S&S Cycle 84-99 BT Super Stock Cylinder Head Kit For 3-1/2in and 3-5/8in Bore - Natural
SKU: S0GE 90-1004
Description
Part #: 90-1004
These S&S (R) Super Stock (R) cylinder heads for 1984-'99 HD (R) Evolution (R) Big Twin engines feature a specially shaped combustion chamber and require special pistons that must be purchased separately. (Not compatible with stock style flat topped pistons) Large 2.000" intake and 1.605" exhaust valves and high flowing ports supply plenty of air for big inch engines. Compatible with cams with lifts up to .650". Compatible with stock 3-1/2" or 3-5/8" bore engines. Order appropriate gasket kits separately for your specific bore size. Natural aluminum finish.
Super Stock Cylinder Heads
Fitment
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Specifications
| Brand | S&S Cycle |
| Part Number | S0GE 90-1004 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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