Our LS6+ Beehive Valve Springs are a great way to freshen up LS heads. These Beehive springs offer .580" max lift, and these springs deliver higher seat and open pressures, along with a higher spring rate than GM LS6 "blue" springs.

Specifications:

• Top Outside Diameter: 1.077 in.
• Compatible Spring Seat/Seals: 528-KIT
• Compatible Titanium Retainers: 722-16
• Compatible Tool Steel Retainers: 1772-16
• Compatible Chromemoly Steel Retainers: 774-16
• Spring Style: Beehive
• Valve Spring Series: Performance Street
• Damper: No
• Compatible Shims: 4753
• Top Inside Diameter: 0.655 in.
• Spring Rate: 386
• Open Load: 304 lbs.
• Seat Pressure: 92 lbs.
• Installed Height: 1.8 in.
• Coil Bind Height: 1.181 in.
• Bottom Inside Diameter: 0.86 in.
• Bottom Outside Diameter: 1.282 in.