Engine
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Top-quality primary gasket with silicone beading. Meets or exceeds OEM specifications. Made in the USA.
Gasket kit for derby and inspection cover applications. Genuine James Gaskets construction with Foamet® sealing technology. Made in the USA.
Durable o-ring designed to seal throttle-to-intake connections and prevent air leaks for consistent throttle response.
- Bolt-on power: +40–50% on stock 107", 114" and 117" M‑Eight motors.
- Compressor and turbine housing with Garrett internals; plenum with integrated blow-off valve.
- Includes injectors, spark plugs, boost gauge with mount, oil feed/drain lines, custom cam cover, tune files, hardware and gaskets.
- Requires Thundermax ECM (sold separately). Does not fit Twin Cooled or non-removable fairing lowers. Offroad use only.
- Made in the USA.
Die-cast cover accepts OEM-style time covers, gasket and hardware.
Die-cast aluminum cam cover; bushings installed to OEM specs. Includes oil seal, mounting hardware and gasket.
Sold as a kit for two heads and includes mounting hardware for straightforward installation.
Sold as a kit for two heads; includes mounting hardware for easy installation and a clean finished look.
OEM-quality cast aluminum replacement piston kit; includes two pistons, wrist pins and clips.
OEM-quality replacement piston kit. Includes two pistons, wrist pins and clips. Accepts OEM or Hastings rings.
Transparent cam cover that matches Assault series air cleaners and allows internal inspection. Made in the USA.
OEM-quality cast aluminum alloy piston kit; includes two pistons, wrist pins, and clips. Rings sold separately.