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#11
09-14-2019, 03:41 PM
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Although some degree of pushrod “shock absorbing” is virtually unavoidable, minimizing such deflection and compression is critical for maintaining proper valve timing. Do not be overly concerned about pushrod weight.
The pushrod is on the slow moving side of the valve train. The additional weight of a heavy wall pushrod usually provides a much needed increase in valve train stability. Helpful. Instead of ordering a 5/16 pushrod with the typical .080"-.082" wall, seek out a 0.116"-0.118"wall pushrod, or similar. Depending on your source. Not much difference in cost. . .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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