Engine

Twin Air is proud to announce our latest product, the Twin Air Radiator Sleeve. This new product is a nylon coated, glass yarn material that fits over the radiator louvers so no dirt, sand, or mud can stick to the radiator, clogging the radiator,...

ForgedPrecision machinedCompatible with OEM keepers and retainersDesigned and manufactured to meet or exceed OEM specs and standards

Forged one piece valves for unmatched strengthCVD/CNI coated to reduce heat and frictionManufactured to exacting tolerances from highest grade materialAll valves sold each

Twin Air is proud to announce our latest product, the Twin Air Radiator Sleeve. This new product is a nylon coated, glass yarn material that fits over the radiator louvers so no dirt, sand, or mud can stick to the radiator, clogging the radiator,...

Save $$ over OEM pricingInterchanges directly with OEM parts

KPMI® solid Viton® valve stem seals are designed to have optimum fitment, allow for maximum lift, and to give maximum life. KPMI® Red valve stem seals are resistant to high temperatures, petroleum products and the corrosive gasses that are the...

Completely rebuildableBanshee comes with main bearingsMain bearing and seal kits available separatelyTrued and ready to install-except for main bearings and seals

Race proven worldwideImproves heat dissipationStronger than stockPrecision machined from billet T-6 aircraft quality aluminum to aerospace tolerances

Cylinder looks just like stockNickel silicon carbide plated for longer life

The largest displacement bore kit available without the need to bore engine cases. Comes complete with aluminum cylinder, mx grind camshaft, piston, rings, piston pin, clips, and gaskets.

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required