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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Dec 2011 Posts: 39 New Guy | | New Guy Joined: Dec 2011 Posts: 39 | HI all! I just rebuilt my very first 235! Im unsure of what oil and weight to put in it though... I have heard because of the flat tappet cams, use a high zinc oil and a zinc additive or else my precious engine will self destruct... true? The two mahor oils I have heard are Joe Gibbs, and Valvoline VR1. Suggestions? And what weight should i run? The manual says 10w-30 and change after first 1000 miles, then every 2000 miles. Does this sound right? Glad to hear any and all suggestions and feedback, thanks!
Last edited by bgf61; 07/15/2012 9:19 PM.
- Theres no replacement for displacement.
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A good Tech Tip
