These hypereutectic pistons and rings will give your flathead the most modern, low-drag combination ever offered for a flathead. This is the same piston design used in new cars and uses the T4 heat treating process that has unparalleled low drag and wear. Standard bore is 3.188".
Must use Style F rings listed.
This item is garage sale priced because it has been discontinued from our current product line.
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS