946417 Replacement 74" Flathead piston kit. +.020"

When your 1937 to 1948 74-inch U-model Flathead needs a bit more than a hone to get the cylinders back in shape, this .020 inch oversize piston kit from MCS is the right choice. These cast aluminum pistons are built to OEM specifications for the 1200cc Side Valve engine, maintaining the classic performance of your vintage Harley. Sold as a kit, this package comes complete with pistons, wrist pins, retainers, and piston rings. It is essential for any mechanic to carefully check the fitment against other engine components before final assembly. Following a standard break-in period is vital for these new components to settle in properly, ensuring your 1200cc Flathead stays on the road for years to come.