Bent push rods can be caused by only a few things. The first is that the valve stuck in the guide due to a lack of lube, or valve fitted to tight to the guide. Did you check the rocker arms to see if everything was getting lube when you first started the engine? If you had lube oil at the top of the engine dripping on the valves a little of that oil has to get in and lubricate the guides. With the engine cooled down are the valves with bent push rods free to move in the guides? You should be able to push them down by hand and the spring should return. Compare to other valves to see what I'm talking about. Let me know what you find. charlie
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