11-1139 - Cast Iron .004 Oversize Intake/Exhaust Knucklehead Valve
Knucklehead .004 oversize valve guide features a cast iron construction as original with a ground outer diameter.
*NOTE: The guide is the same for intake and exhaust.
Country Of Origin: USA
15-0297 - Over Head Valve Guide Gasket
13-0792 - Replica Valve Spring Set
11-9641 - Nitrate Intake Valve
11-9643 - Nitrate Exhaust Valve
Tech Notes: Suggested to use with #14-0452 Valve Guide Seals.