GSC Power-Division High Lift High Pressure CONICAL Valve Spring with Ti Retainer for TB48 (W/SEATS)

Precision‑rated valve springs designed to match Cam X 4000 perfectly. Ensures stable valvetrain control from 4000 to 8500 rpm in high‑boost drag applications.

• 115lbs @ 1.383" install height 
• 290lbs @ .853" Open

Kit includes 24 Ti retainers, 24 conical valve springs and 24 chromoly spring seats.