Specifications

• Part# PAC-1239
• Name PAC-1239 Circle Track Dual w/Damper
• SKU PAC-1239
• Alt Part# PAC-1239-16
• Description Circle Track 1200 Series Valve Spring 1.550 Dual with a damper
• Outside Diameter 1.550
• Outer Spring ID 1.126
• Middle Spring ID N/A
• Damper Yes
• Inner Spring ID 0.720
• Install Height 2.050
• Load at Installed Height 220
• Spring Open Height 1.300
• Spring Open Load 625
• Recommended Valve Lift 0.800
• Spring Rate (lbs/in) 540
• Coil Bind (max) 1.180