Fits: 1986-'16 HD® big twins. Kit contains 2 front and 2 rear rocker arms. Extremely durable rollers reduce valve stem side thrusting with high lift cams. Superior wear and fatigue resistance even in the most demanding applications. 3⁄4" long bushings provide 50% more bushing support area than 1⁄2" long bushings. Available in stock 1.625:1 ratio or performance 1.725:1 ratio.
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installaton problem
if your using these in a twin cam engine be sure to grind out the bridging in the top rocker cover @ the vale area to prevent the valves from staying open on assembly due to interference with the rocker arm s&s doesn't seem to share this until you call with a problem
510-0049-rocker-box-clearance-cnc.pdf
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