Bronco AU-09229E Exhaust Valve engine-cylinder-kits-replacement-parts Alpinestars patented low friction coating

Alpinestars patented low friction coating is applied to the inner part of the main EPS liner to reduce the rotational acceleration forces that can result from certain oblique impacts

Every gasket in these kits uses the best materials possible for its intended application

Dyno tested 500

S&S Quickee Pushrods with chrome or gloss black pushrod tubes

1976-1978 Polaris TX 340

Bronco AU-09229E Exhaust Valve engine-cylinder-kits-replacement-parts Alpinestars patented low friction coatingBronco offers OEM Replacement valves for both utility and sportmodel ATVs. OEM Replacement valves are made of durable SUH35B heat resistant steel that also come with fill Nitride finish for further durability and resistance to corrosion. Performance valves receive a swirl polish, smooth stem treatment, and are made of 21 4N SUH35HT stainless steel. Performance valves are generally reserved for high performance reving machines so these valves are