Re: Snyder or Thomas head
I would choose the Snyder cast iron 6:1 head . The Thomas aluminum head may give more power but aluminum has a different expansion rate than cast iron and will sooner or later give more gasket problems. Also aluminum has a tendency to stick to the steel head studs because of disimilar metal reaction. This can be a problem when the head needs to be removed . It may look cool but I always avoid aluminum parts when I have a choice . Aluminum doesn't hold up as well as cast iron .
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