6.4 Competition Valve Bridge Set
Competition 6.4 Valve Bridges
They have been machined from only Certified Aero Space Grade H-13 tool steel, core hardened before friction surface pad is surface ground to remove any tooling marks. We finish them off with a nitrided surface treatment, which reduces rockerarm to valve bridge friction by 300%. Overall valve bridge weight has been reduced by 13% in comparison to OEM.