Crow Cams valve springs are made from aircraft quality alloy steels to give the best performance and reliability at a reasonable price. They are specially designed to suit our high lift, high acceleration profiles. The following is a guide to popular applications, if your spring is not listed please see the spring specification chart on page xx or contact our technical staff. Making correct measurements before assembly is critical as many variables are present to catch the unwary. Note Dual Valve Springs may require head machining to fit. Dual Valve Springs measured with .100 Thick Retainer

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