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Re: Question about lS engine vs gen 1. SBC
Later 350 blocks with 1 piece rear seals seem to hold oil well. On my 2-piece rear seal block I upgraded to a 1-piece oil pan gasket and used the valve cover gaskets with the steel core and had zero leaks after that.
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find
87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4
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