Product images may differ from actual product appearance.
Crower's Long Arm/Backset trunnion rollerized rockers are made to the same high tolerances as our standard stainless steel rocker arms with a .090" backset trunnion and these added features:
Increased area under the lift curve
Additional spring clearance (1.650")
Smoother valve action
Less side loading on stems/guides
Drop on installation
Set of 8 roller rockers for intake (use standard Crower stainless steel rockers on exhaust)