PAC Performance Valve Spring Kit – LS1, LS2, LS3 – Street & Race Ready

Upgrade your LS engine with this premium PAC spring kit, designed for both street and race applications. Featuring high-performance dual springs with a polished 1.320" outer diameter, this setup is ideal for builds requiring reliability and power at higher RPMs. Engineered for a 1.800" installed height.

Technical Specifications:

• Part Number: PAC-1511X-16

• Spring Style: Single Beehive

• Valve Spring Diameter: 0.650"

• Seat Pressure: 130 lbs @ 1.800"

• Open Pressure: 370 lbs @ 1.175"

• Spring Rate: 385 lbs/in

• Maximum Lift: 0.650"

• Coil Bind Limit: 1.110"

• Kit Contents: Set of 16 springs

Built for performance, this PAC spring kit offers the strength and precision demanded by LS enthusiasts pushing their engines to the next level.