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The .042-inch SCE copper head gaskets are painted with copper spray paint in this simple but effective spray box, which can be made from any cardboard box long enough to let a gasket hang. A pegboard hanger inserts through the rear. Gaskets hang freely, and can be left to dry without disturbing the painted surface. Matt likes the .042-inch gasket, as it is the most tried-and-true size for a motor of this kind (not to risk pushing a gasket under serious cylinder pressure) and other issues used in calculating this engine's base compression were manipulated through pin location, deck height, and chamber size. Remember that you can swap out these gaskets later to add or subtract compression, allowing for slight changes around more or less powerful combinations.