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On removing the LS1, heres a thought and don't jump on me all at once for suggesting it. My brother's Fiero we remove the engine by dropping the cradle using a jack/jacks and a furniture trolley, we use the crane on the body and just lift the body up high enough to slip the engine out from under it. Could that same principle be applied to an LS1 4th gen? It may be easier that way.
Take it from a guy who rebuilt a TPI 350 with ruined bearings... Pay attention to the bearing surfaces and look for material. Can also cut open the oil filter and look for shavings. The bearings, crank and cam damage combined I found wound up having me replacing the crank and cam as well. I was going to leave the cam alone til I realized at someone's suggestion that shavings in the oil mean shavings in the oil galleries and the rest of the lubrication system. Had I not pulled the cam I would have just destroyed a freshly rebuilt motor. So pull it all apart and have it tanked and cleaned out at a machine shop. I tried at home with brake cleaner and etc. No way I would have gotten all the crap out.
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