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Description

The PAC-1218 Spring Kit is a drop-in high performance spring kit for all OE LS cylinder heads and is rated for up to .600" lift.  This spring kit uses all OE hardware, including seats, retainers, and locks and is 100% drop-in.  The PAC-1218s are an ovate beehive spring that has increased loads, rates and frequencies for more aggressive cams. This is a full set of 16 springs.

 

 

 Specifications:

 

Number of Springs Per Valve: Single

Outside Diameter of Outer Spring (in): 1.290 in.

Coil Bind Height (in): 1.140 in.

Damper Spring Included: No

Install Load: 130lbs

Install Height: 1.800"

Open Height: 1.175"

Open Load: 318 lbs

Spring Rate (lbs/in): 313 lbs./in.

Inside Diameter of Outer Spring (in): 0.885 in.

Valve Spring Style: Beehive

 

 

Interchange Part Number:      

PAC-1218, PAC1218

PAC1218-16, PAC121816

1218-16, 121816

26915-16, 2691516

 

 

Package includes:

16x 1218 Drop-In Beehive Valve Spring Kit