Nissan A Series Dual Valve Spring Set KVS14D rb26 head drain flow and features

flow and features

The manifold is designed using 36mm Internal Diameter runners and we have tried to keep the internal volume of the manifold down to increase throttle response

2in) lower than PowerPort while flowing over 25% more than the Market leading 50mm Raceport

Specifically Developed Red Urethane Bushes

50mm Valve Lift - VVL middle lobe removed

Nissan A Series Dual Valve Spring Set KVS14D rb26 head drain flow and features95lb seat pressure at 38. 00mm. Coil bind is at 25. 50mm NISSAN A12 A15. High performance dual valve spring set to suit OEM retainers. This spring set only suits full race A series engines with aggressive camshafts (not for street motors). 95lb seat pressure at 38. 00mm Install height. Coil bind is at 25. 50mm