Description This kit includes standard or 1mm oversized size valves Single or triple groove Harden black nitride EV8 (21-4N) stainless steel intake valves Inconel 751 or Inconel/Nimonic sodium exhaust valves Options: Manganese-Silcon-Aluminum-Bronze Valve Guides Valve stems seals Heavy duty or race valve springs w/titanium retainers Single groove upgrade (for High RPM)
