Edelbrock part 97413 high performance hydraulic roller lifters for Small - Block Chrysler 318 - 340 - 360 engines are the perfect match for street and high performance applications. With unsurpassed tolerance capable of high rpm power, these precision self - aligning retro - fit hydraulic roller lifters are designed for use in early model non - roller engine blocks originally equipped with conventional lifters. Sold in complete sets of 16.