Engine

Active filters
Plug-and-play cooler kit with a high-powered, waterproof fan and temperature-activated switch; includes wiring, hardware and instructions. Not for "Twin Cooled" models.
Protects the oil sending unit sensor and connector; precision-machined for a snug, low-profile fit. Made in the USA.
Provides neat coverage for the oil sending unit sensor and connector. Made in the USA.
Low-profile billet tappet and pushrod cover kit; fits Twin Cam pushrod covers only; sits 1/2" lower than stock; includes gaskets, O-rings and screws; made in USA.
High-flow piston oiling jet kit designed for stock and high-performance flywheels; modified for stroker applications. Made in the U.S.A.
Quality pinion shaft bushing. Made in the U.S.A.
High-performance valve spring kit engineered for racing applications. Progressive springs and a complete set for one engine; made in the USA.
Precision-machined shouldered valve guide in nickel bronze for superior wear resistance and heat conductivity. Sold each.
High-density powdered metal valve seats offering exceptional wear resistance and thermal stability. Made in the USA. Typically supplied as two intake and two exhaust seats per application.
Precision machined cam cover bushing with .0002" tolerance and installation lead-in. Made in the U.S.A.
Precision-machined cast-iron valve guide compatible with unleaded fuel; OEM-style replacement.