Race Series Evo tappet set

Standard 0.8425" Outside Diameter. Drop-in upgrade replacements for the stock lifters. Feuling Evo Race Series lifters are machined from a steel body, designed with precision tolerances and offer a slower bleed down rate to increase valve-train stability when used with large lift camshafts and heavy valve spring pressures. Feuling Race Series Lifters come with full travel hydraulics and big axles. Designed to decrease valve float and promote maximum valve lift. OEM replacement reference 18523-86B. Note: Feuling recommends running a high volume oil pump, not required but can result in better performing lifters