COMP Cams Chevrolet Small Block XD Short Travel Retro-Fit Hydraulic Roller Lifter SetThese short travel retro fit XD hydraulic roller lifters feature a billet seat and short travel. These lifters' short travel allows for light pre load and reduced oil volume for the highest revving lifter for Chevrolet Small Block. This Part Fits: Year Make Model Submodel 1992 1993 Buick Roadmaster Base 1992 1993 Buick Roadmaster Estate Wagon 1992 1993 Buick Roadmaster Limited 1987 1990 Chevrolet Camaro Iroc Z 1991 1992 Chevrolet Camaro Z28 1992