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Champion Shaft Mounted Big Block Rocker Arm 1:1

Champion Shaft Mounted Big Block Rocker Arm 1:1

1 Reviews
Product Code: champ390
Shaft Mounted 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 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 included (Studs may require tools to install = to tight to turn by hand)
  • Fits GX390 and 420 OHV engines. Will not fit GX270s.


Average Rating:
( 1 )
Edward Horton from Danville, NH United States
November 1, 2023
Great service
Product delivered in very timely manner as stated on website. Product qty is great will def order through again
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