GSC Power-Division Extreme Race Conical Valve Spring kit for the Nissan VK56

Precision‑rated CONICAL valve springs designed to match Cam X 5000 perfectly. Ensures stable valvetrain control from 5000 to 9500 rpm in high‑boost drag applications.

• 138 lbs @ 1.312" install height 
• 294 lbs @ 12 mm lift 

Kit includes 32 Ti retainers, 32 conical valve springs and 32 chromoly spring seats.