Nakkaa PAC-1218 Drop-In Beehive Valve Spring Kit 600" Lift Rated Uniform Pressure High Strength Valve Springs Compatible with LS1 LS2 LS3 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L 6.2L Engine PAC-1218-16

Fitment:PAC-1218 Drop-In Beehive Valve Spring Kit Compatible with LS1 LS2 LS3 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L 6.2LReplaces part number:PAC1218PAC-1218-16PAC-1218Specifics:Number of Springs Per Valve: SingleOutside Diameter of Outer Spring (in): 1.290 inCoil Bind Height (in): 1.140 inDamper Spring Included: NoInstall Load: 130lbsInstall Height: 1.800"Open Height: 1.175"Open Load: 318 lbsSpring Rate (lbs/in): 313 lbs./in.Inside Diameter of Outer Spring (in): 0.885 inValve Spring Style: Beehive

• Fitment: Direct drop-in beehive valve spring kit compatible with LS1 LS2 LS3 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L 6.2L engines; Replaces part number: PAC1218, PAC-1218-16, PAC-1218; Please verify engine info and part number to avoid incorrect fit
• Balanced Pressure Performance: Every spring goes through strict pressure testing to keep balanced 130lbs install load and 318lbs open load. Standardized production controls pressure variation for smooth engine running
• Premium Material and Stable Structure: Adopts premium alloy steel material and integrated structure design. Optimized compression property and long-cycle working stability, reducing the risk of spring fracture and valve movement failure during daily driving
• Accurate Dimension Specs: Rated for 600'' lift with precise production specs: 1.140” coil bind height, 1.800” install height, 313 lbs/in spring rate. Ideal for daily vehicles and conventional modified engine assembly
• Complete Kit and Simple Installation: Package contains 16pcs beehive valve springs, single spring per valve. Simple direct installation with no extra cutting or refitting. It is suggested to match with new sealing parts during assembly for longer working cycles