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Old 10-22-2001, 06:19 PM
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427sharpe 427sharpe is offline
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Join Date: May 2001
Cobra Make, Engine: A CSX Cobra,1966 GT350 and an '06 Ford Heritage GT
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Question

1:8 rockers?? should be 1.73:1 if using the 429CJ/SCJ set up, and 1.75:1 if using 'plain' 429/460 parts. If you are using 1:8's, you should be using a slightly shorter pushrod. The 1.8:1 are actually BB chevy ratio. I double checked mine, and are 1.73:1. This may be the source of valve problem--not float, but bind. Can be VERY damaging to a motor--esp the camshaft & lifters. I found a couple of cam mfgs that sell 1.8 rockers, but a footnote says you MUST use thier pushrods?
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