946488 Replacement 80" Flathead piston kit. +.080"

This MCS piston kit is the solution for 1937 to 1941 80-inch Flathead engines that need a significant .080 inch oversize. Designed for a stock 1300cc Side Valve rebuild, this kit is sold as a set and includes cast aluminum pistons, wrist pins, retainers, and rings. It’s a complete package that simplifies the restoration of your vintage motor's top end. Because these are older designs, it's vital that a skilled mechanic handles the installation to ensure all components are compatible and clearances are spot on. Following a traditional break-in procedure will help these pistons settle in for years of reliable service. OEM 946488.