HYDRAULIC LIFTER (STOCK STYLE - NOISY)
STANDARD HYDRAULIC LIFTER W/ WIRE CLIP RTNR & STNDRD FASTER BLEED RATE
Note: This lifter is an oil metering type. It can be used in engines that oil through the pushrods.
The standard performance 5001 lifters (made in the USA by Hy-Lift Johnson) will have a more mechanical sound (tick tick tick) than the high performance 5003 lifters, but they cost less.
Any tappet adjusted to .000" preload will operate as an "anti-pump up" lifter. However, when using a lifter with a small wire retaining ring such as OEM lifter (shown as #5001), there is a higher probability of the retainer ring failing with this amount of pre-load. Anytime maximum RPM is necessary and a minimum tappet preload or lash is used, racing lifters with heavy duty retaining rings (#5003) are strongly suggested.
Plunger travel in this lifter is 0.208 +/- 0.02
Do not use oil heavier than 10W30.
If you are converting an OEM roller lifter engine 1987-1991 to a conventional flat tappet camshaft use P/N 5001 or 5003, along with the proper length pushrods. Do not fill or pump up hydraulic lifters before assembly. They may hold the valves open causing difficult starting and/or engine damage.