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The cylinder head is outfitted with stainless steel valves sized at1.890 inches on the intake and 1.750 on the exhaust. (Stock dimensionsare 1.750 intake and 1.50 exhaust.) They are controlled by rollerrockers to save horsepower and improve durability. The camshaft isEsslinger's most popular design. The billet roller has .620-inch liftwith 269 degrees of duration. Lobe centers are at 104 degrees.