I was browsing through here and I read something from a guy named Moe B (or something like that) He said in 1999 HD came out with the Twin Cam engine. He said it was a dual overhead cam engine that HD copied of Japan. If this is true, why did HD keep the tappet blocks, and push rod covers, Would the tappets and push rods do? Isn't the advantage of OHC engines the elimanation of lifters and pushrods? Or did HD keep those covers for cosmetic purposes? OR, is this just another basher that does't know what he's talking about?
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