S&S complete Twin Cam(A) Motors 4-1/8in. Bore
Also fits S&S SuperSidwinder+ Evo Motors 4-1/8in. Bore
* MLS 0.040in. thick Head Gaskets (OEM)
* Remember to check your clearances.
* Will Not Work on OEM cases with 124ci Hot Set Up Kit.
* Will Not Work on SE cases with 124ci TC124B built Hot Set Up.
