Edelbrock part #97384 high performance hydraulic roller lifters for 1987 and later small-block Chevys are the perfect match for Edelbrock Rollin' Thunder hydraulic roller cams. The Edelbrock Part #97384 are a drop-in replacement for 1987 and later blocks Product Features:For Small Block Chevy (1987-Later)Without Tie Bar.75 To 1 Turn Of Preload Is RecommendedSet of 16Made In The USA