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#1
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Experienced Member ![]() ![]() ![]() Group: Advanced Members Posts: 1,042 Joined: 24-December 03 From: Hanover, PA Member No.: 36 ![]() |
Obtained the Harland Sharp 1.7 ratio Alum roller rockers. Nice pieces. Went in ok.
Rear part was close to ridge in head and filed it down to give a little more clearance. No excessive noise or other downfalls. Steve |
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#2
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Advanced Member ![]() ![]() Group: Member Posts: 440 Joined: 23-December 03 From: Nashville, TN Member No.: 1 ![]() |
I tell you what. You guys might write-off the opinion of a drag racer, but if I were in your shoes and looking to operate the motor for extended periods at mid and high-rpm conditions, I would chose only 1 roller rocker, the Comp Cams Pro Magnum steel rockers, non-self aligning, with hardened pushrods and guideplates, 7/16ths rocker studs.
Short of rocker girdles, this is going to be the strongest, most rigid and most accurate valvetrain. The aluminums are fine for most, but there have been instances when they've broken on people, being drag racers. With the different abuse a road race motor takes, I'd want the stronger steel rockers. They are heavier yes, but the actual weight at the valve stem is less due to their ability to remove material and preserve strength via steel. Trunion is bigger too, meaning loads are distributed more evenly. And the hardened pushrods and guideplates would create a very stable environment with little or no deflection. Its the setup I have, and I wouldn't go any other way. |
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Lo-Fi Version | Time is now: 9th August 2025 - 11:46 PM |