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The Ferrea Super Alloy exhaust valve set fits Nissan RB25DET engines and is sold as a set of 12 with 30.6mm heads, 5.96mm stems, 88.95mm length, 21° face and +1mm sizing in flowing configuration. This set is intended for builders who require slightly larger exhaust valves while maintaining proper seating and longevity characteristics for the documented RB25DET application.
Ferrea Nissan RB25DET 30.6mm 5.96mm 88.95mm 21 Deg Flo +1mm Super Alloy Exhaust Valve - Set of 12
