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Cylinder Heads & Components

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Shop the range of aftermarket motorcycle engine products at Pro Class Custom Parts.

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Regular price $3,964.99
Sale price $3,964.99
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Features & Benefits:- * Fitment to H-D 1966-1978 models will require upgrade to the 1979-1984 style inlet manifold rubbers & clamps. * .590′ Lift. People who Buy this Product also Purchas...
Regular price $1,063.99
Sale price $1,063.99
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Features & Benefits:- * Fits Twin Cam with S&S Heads. * Fits Evo 4″ & 4-1/8″ Bore Engines with S&S Heads. * Must be used in conjunction with S&S Rocker Covers. Proudly Made in ...