Quote:
Originally Posted by gata79
Sorry, should have been more specific. It’s for a 535 IAII aluminum block with fully ported Tiger heads. I have another engine just like it that I did enlarge the hole. I turn that engine engine to 7800 or so. It’s basically the same build but going in my other car. The hole just seems small and I don’t want it to be a restriction. The oil pressure on my other engine is fine and has given me no problems so far. 80 lb oil pump. Clearance around .003. 3 inch mains. Upper end is restricted. Scat crank Oliver rods.
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What did you end up doing? I spun a rod bearing at 12 passes.
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