Quick view Predator Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 Shaft Mounted 1.1:1 Ratio Rocker Arms for GX390, 420 OHV, and 460cc These are the famous "Champion" HD shaft rockers for GX390 and 420 OHV engines. They are arguably the best bang for your buck when... $28.99 Add to Cart
