Retro-fit roller lifter for early model bocks originally equipped w/flat tappet cam

Tall body fits both standard blocks & tall lifter bore aftermarket blocks

• Performance replacement for stock hydraulic roller lifters or retro-fit hydraulic roller lifters for non-roller blocks

• Decrease friction and increase longevity when directly compared to flat tappet lifters

• Accept much more aggressive cam profiles than flat tappet lifters will allow