Extreme Duty Billet Tool Steel Valve Bridges
OEM Valve Bridges were originally designed for stress levels that were nowhere near what is being seen in recent years, which has allowed for rocker arm and pushrod issues to arise in performance applications. When the stress on the valve bridge exceeds what is considered a reasonable window of operation, it is not designed to support the additional load that it is experiencing. Therefore, we felt it was time to provide the industry with extreme duty valve bridges capable of far more abuse than anything the market has even seen.
Improved strength , performance and service life are goals of ours during our engineering process. Therefore, we CNC machine our valve bridges from only premium “hot-working” tool steel bar stock. After leaving the milling centers, the valve bridges are all hand inspected before being sent to heat treating for core hardening. Once returned from heat treating, each valve bridge is inspected before having the friction pad surface ground, which removes any tool marks that may cause excessive wear to the rocker arm. Bridges then have their surface nitrided, creating a very slick and hard surface to provide excellent wear protection and reduction of friction. Our combination of materials, precision machining and heat treatment process’ provides a cost effective solution for reducing friction and extending the service life.
Last but certainly not least, correct pushrod length will allow you to keep stock rocker geometry, allowing the friction surface of the rocker arm to ride the correct contact area of the valve bridge. If you have made any changes to the engine requiring custom length pushrods, we sell pushrod length checking tools with proper ball and cup radius’ to replicate the OEM pushrod in all diesel engines.