- Performance hydraulic roller lifters dyno developed and track tested
- CNC-machined and precision ground
- When used with Feuling® oil pump, they will increase critical oil flow to valves, springs, rockers, shafts and valve guides
- Extend life of top end valve gear
- Can also be used for OEM replacements
- Sold in a set of four
- Made in the U.S.A.
- Manufacturer part number: 4000
Full travel lifter pre-load should bet set to 0.090" - 0.100" cold
Model: HP+ Series®
Size: Standard O.D. 0.8425"
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