Est Complete Engine Gasket & Seal Set For Evolution Sportster

Weight (lbs): 1.45 EST (extreme sealing technology) Gasket Sets are considered the best available Head gaskets are a .040" thick 3 piece rubber coated stainless steel and can withstand compression ratios up to 15:1 Base gaskets are rubber coated stainless steel that measure .020" thick Lower rocker cover gaskets are 1 piece rubber coated stainless steel that measure .020" thick The middle & upper rocker cover gaskets are made from rubber The primary cover gasket & gear cover gasket are made from a synthetic foam material bonded to an aluminum base sheet Includes low restriction exhaust gaskets & viton valve seals Cometic Fits: Harley 1200cc Sportster 1991-2003 Replaces HD# 17026-91A By: COMETIC GASKET