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Description
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
OEM Part Number:
PAC1218
PAC-1218
PAC-1218-16
Fit For the Following Models:
LS1; LS2; LS3; LS6; LS7; LS9 LSX Engines
1999-2002 Camaro & Firebird
2010-2013 Camaro
1999-2013 Corvette
2004-2006 Pontiac GTO
2004-2007 Cadillac CTS
2008-2009 Pontiac G8
2000-2013 Tahoe; Yukon; Escalade
2003-2009 H2 Hummer
2001-2013 Chevrolet Avlanche
1999-2013 Silverado & Sierra (4.8L; 5.3L; 6.0L)
Note: If you are uncertain about the compatibility; just send us your VIN. We will check it for you.
Package Includes:
16× Valve Spring