CUSTOM CHROME PISTON EVOLUTION BIG TWINS 1340cc 8.5:1 COMP. .030
Source: Custom Chrome
These cast aluminum pistons provide a lower-cost alternative. They re available in stock compression versions only and come with fitted wrist pins and late-style piston E clips. The pistons for Panhead and Shovelhead Big Twins feature integral steel struts for expansion and distortion control. All pistons will accept our replacement Motor Factory® piston rings. Sold each.