Seller notes

Champion Shaft Mounted 1.1:1 Ratio Rocker Arms for GX390, 420cc, and 460cc Big block OHV Engines These are the famous "Champion" HD shaft rockers for GX390 and 420 OHV engines. They are arguably the best bang for your buck when it comes to valve train stability. A shaft rocker eliminates the need for a guide plate and prevents the rocker arms from walking side to side. Further, they have considerably more rigidity than stud rockers, so they rarely need adjustment once set. Studs and nuts include...

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