![]() So if your block is worn slightly-say around 1/32 (0.0315) inch -this will work perfectly.Įven if the worn portion is not that deep, the chain will help to effectively align the gear properly. ![]() ![]() The quick answer is that Comp carries a simple, moly-coated shim (full parts list below) that fits between the cam gear and the block that’s only 0.030 inch thick. Don’t worry about sanding or filing this completely smooth, it’s not really critical. This is not a common problem with small blocks but we have seen it happen. Happily there’s a simple fix for this issue. Is there a thrust bearing or a shim available to space the cam gear out so it will still align with the crank gear? It looks like the groove is around 1/32 inch deep or so, maybe a little less. I think I can file this down and polish it but I’m concerned about this removed material will allow the cam to move too far backward. During tear-down, I noticed that the flat surface behind the cam gear is worn with an irregular surface. I have a really nice, four-bolt main small block Chevy 350 that I’m about to build into a street 383 with a stroker crank with forged pistons and good rods.
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