Winters Quick Change Gears - Set #54 2110001 RPM E-Tec cylinder heads are

RPM E-Tec cylinder heads are dual-drilled and will accept 1987-95 centerbolt and/or 1986 & prior perimeter flange mount valve covers and most stock exhaust manifolds

3/4 in Smooth Bore to 13/16 in 36 Spline

Single Stage Power Valves - High Flow - #HLY125-125 - Opening Vacuum 2

Vehicle Applications: 2015-16 FORD MUSTANG GT 5

Winters Quick Change Gears - Set #54 2110001 RPM E-Tec cylinder heads areWinters Quick Change Gears are made from SAE 8620 Steel and are 1 3 8" wide. Sets 50 thru 58 are for limited horsepower applications only. For more than 60 years, Winters Performance Products has been producing high performance rear ends and driveline components for racing and street use. Their product offering includes everything from quick change gear sets to shifter assemblies, as well as many components specifically for the sprint car market.