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06-23-2010, 02:20 AM #1
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Black- 383 Procharged & N20 Vert
Rocker Arm Design - CHP How It Works
Rocker Arm Design - CHP How It Works
With The Help Of Comp Cams And T&D, We Break Down The Intricacies Of Rocker Arm DesignOverhead cams are a more efficient method of actuating the valves than with a pushrod, but someone in Detroit never got the memo. And thank goodness they didn't. With production pushrod mills turning 7,000 rpm, NASCAR Sprint Cup engines pushing 9,500 rpm, and NHRA Pro Stock motors creeping closer to 11,000 rpm every day, breakthroughs in valvetrain technology have pushed OHV architecture far beyond what was ever imaginable. Furthermore, while street motors will never wind out as high as dedicated race motors, with today's high-flow cylinder heads, turning 7,500 rpm isn't out of the question. While durable valvesprings, and lightweight valves and retainers get much of the credit, these stratospheric rpms wouldn't be possible without commensurate progress in the rocker arm front.
Photo Gallery: Rocker Arm Design - Chevy High Performance Magazine
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