Hydraulic Roller Lifters by Ford Performance®. Circle track racers who use the production hydraulic roller lifter in 347 crate engines reported that their engine seemed to lose power during long green flag runs. Dyno testing by Ford Performance engineers confirmed that – and showed a dramatic performance fall off over 6000rpm with hot oil temperatures. The problem was traced to the piddle valve check ball, which would become unseated at high rpm when the oil got hot. The fix was a lighter-weight ceramic piddle valve check ball combined with a higher-rate piddle valve spring to keep it seated. The results of these two small changes were impressive – and noticeable by the racers.
Notes
This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME.
Designed to help you get the most out of your vehicle
Perfect for use in high-performance environments
Made to be rock-solid strong and durable to endure punishing conditions
Crafted from the finest materials to ensure superior dependability and terrific value
The heart of Ford Performance® Parts began over 100 years ago on simple dirt tracks; today it has transformed into a legendary name throughout the performance world. Ford Performance Parts provides: crate engines, air and fuel components, chassis and suspension equipment, valvetrain components, and interior/exterior dress-up accessories for superior styling. These racing parts are built from quality materials and most are track-tested on NASCAR series, World Rally, and NHRA vehicles to guarantee the ultimate in Ford Performance.
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Ford Performance® - Hydraulic Roller Lifters
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