Race Series Hydraulic Lifters by Feuling®. Designed for engines with radical valve spring pressures and large lift camshafts. Utilizes standard pushrod seat height, Feuling recommends the use of #4070 Race Series adjustable pushrods or comparable heavy duty adjustable pushrods.
Feuling® Recommends Pumping Up Each Lifter by Hand Prior to Installation, to Remove All Air and Provide a Fully Pumped Up Lifter. Use of a Thin Weight Oil Like Atf in a Squirt Can Works Well.
Feuling® was known as a "skunk work" facility specializing in engine design and development working with and licensing technology to the major manufactures such as Ford™, General Motors™, Harley Davidson™, Chrysler™, Nissan™ and Edelbrock™.
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