Thread: 1964 -389 cam
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Old 04-30-2025, 09:36 PM
JJ88 JJ88 is offline
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Join Date: Apr 2025
Location: Penticton b
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Originally Posted by JJ88 View Post
Hi B-man
One more question. So I will be basically be upgrading my 1964 - 389 to be like a 1965 - 389 correct. The push rods existing measure at 8.6875

What I am finding for 65/66 - 389’s the push rods measure 8.686 a difference of 0.0015.
Does this sound right to you and would they be .0015 shorter due to the oil spurt rockers possible being slightly thicker. This is a stock motor.
Also wondering if you have any recommendations on what rockers I should purchase and from where. 7/16 bottle style with 3/8 threads