The Comp Cams 850-16 Hyd Roller Lifters are designed for use with Chevrolet SBC 305 350 TBI Vortec LT1 engines. These hydraulic roller lifters provide improved performance and durability, making them a valuable upgrade for your vehicle. With a manufacturer warranty and direct replacement fitment, you can trust that these lifters will meet the high standards set by Comp Cams for quality and reliability. The 850-16 lifters are compatible with a range of engine sizes and models, making them a versatile choice for both car and truck applications.