Harland Sharp Roller Rockers

Quadstar Tuning LLC Verified independent store

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The ultimate rocker arm for the 6.5L to replace factory stamped steel sets, center rockers on valves, and remove unwanted valvetrain play. Key Features: 16 shaft-rocker arms with r oller tips Quadstar exclusive laser engraved logos and ratio Ratio (specify when ordering): 1.5:1 Ratio for stock replacement roller rockers The factory ratio is 1.5 1.6:1 Ratio for slightly increased valve lift Valve clearance should be checked any time ratio is increased 1.7:1 Ratio for extreme builds Pistons must be modified for valve clearance 1.7 has a longer wait/custom order lead time Billet spacer kit for alignment Shims may need moved around during initial fitment testing to center the rocker arms on the valve tips. This is a normal step for installation and is fully documented in the "knowledge base" on our site Latest revision for a trouble-free installation Eliminates need for the factory plastic rocker arm retainers Bolts are not included. Factory mounting bolts will be re-used. Show more