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The tired two-piece 2.08/1.74 Chrysler valves were replaced with one-piece Milodon forged stainless valves. The smooth faces add a little weight but reduce total chamber volume for added compression. The Chrysler intake and exhaust valves weigh 136.2/111.1 grams compared to the 139.8/126.5 grams of the stainless valves. At Daytona they might care, but it's a nonissue in this case.