S&S, CYLINDER BASE GASKET KIT. 4.250" BIG BORE

S&S, cylinder base gasket kit. 4.250" big bore

Used in combination with S&S 580354/5/6/7 4.250" big bore piston kit. Stock bolt pattern. Compatible with stock to 4.250" big bore.

Fits: > 18-21 Softail; 17-21 Touring; 17-21 Trikes