Comp Cams Comp Cams is the absolute leader in valve train technology for over thirty years. Comp Cams builds some of the world's best camshafts, lifters, rocker arms and valve springs. That's why so many top engine builders choose and rely on Comp Cams to help build the horsepower and torque they are after. For the best in reliability and power, upgrade to Comp Cams competition-grade lifters, springs, timing sets, and gear sets. JEGS keeps an extensive inventory of Comp Cams products in stock and can ship the same day your order is placed. Plus nobody beats JEGS low prices!