Engine

Active filters
Directs air through a side scoop to cool cylinder heads; includes a high-powered waterproof fan, temperature switch (activates at 140°F), manual override, wiring and hardware. Plug-and-play installation with no drilling. Not for "Twin Cooled" models.
Precision-machined billet cap with improved heat transmission and performance styling.
Strong, lightweight billet aluminum point cover with CNC precision and improved heat transfer.
Quality pinion shaft bushing manufactured in the U.S.A. Precision fit for reliable performance.
High-precision wrist pin bushing machined to tight concentricity tolerances with a lead-in edge for easy installation.
Precision-machined wrist pin bushings hold concentricity to less than .0002" and feature a lead-in edge for easy installation. Made in the U.S.A.
Powerglide™ Steady Roll tappets with a Steady Roll bronze bushing, billet steel body and enhanced lubrication for longer service life.
Compact crankcase vent filter for reliable ventilation and easy installation.
Durable rocker arm shaft for precise valve-train operation. Made in the U.S.A.