Thread: Engine experts........need your help again !

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When I used to build engines I'd always have the blocks parallel decked and usually the cylinder heads surfaced especially if I were to use used heads. This would at times, depending on how much was removed from deck and heads, make the heads to sit a tad lower and cause a slight angle change to fit when placing intake manifold on. Caused a no go to bolt on at times and leaks from under side of manifold mating surface when manifold was bolted on. Usually we would have the machine shop fly cut the intake manifold to correct for fit. Always worked like a charm.