Description

Jims HydroSolid Lifters

• Perform like a hydraulic tappet up to 5500 rpm, then turn into a solid tappet
• When they turn into solid tappets, it adds approximately three to six more usable horsepower
• Prevent hydraulic pump at high rpms
• Made in the U.S.A.
• Require the use of adjustable pushrods.