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Specs: 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 Part Number PAC-1218 PAC1218 PAC-1218-16 Applications: For LS1, LS2, LS3, LS6, LS7, LS9 LSX Engines For 1999-2002 Camaro & Firebird For 2010-2013 Camaro For 1999-2013 Corvette For 2004-2006 Pontiac GTO For 2004-2007 Cadillac CTS-V For 2008-2009 Pontiac G8 For 2000-2013 Tahoe, Yukon, Escalade For 2003-2009 H2 Hummer For 2001-2013 Chevrolet Avlanche For 1999-2013 Silverado & Sierra (4.8 Liter, 5.3 Liter, 6.0 Liter) Package Includes: 16X Beehive V.
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