Winters Lock-Up Plug Simpson Hybrid Helmet Anchors NOTE: Designed for racing purposes

NOTE: Designed for racing purposes

Bare heads will have valve guides and seats installed

Chevelle 1964-72

GM Fullsize Truck 2019-20

Winters Lock-Up Plug Simpson Hybrid Helmet Anchors NOTE: Designed for racing purposesLock Up Winters Triple Track or Gold Track. 1 3 4" long x 31 spline. 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. Winters Performance is undeniably the most reliable, technically advanced,