Pack of LS performance valve springs for enhanced engine performance and stability
Close-up of LS performance valve springs held in white glove hand, showing detailed design and coil structure.
LS performance valve springs arranged in multiple groups on a white background
Close-up of LS performance valve springs arranged on a white background
LS performance valve springs set with multiple coil designs and finishes
LS performance valve springs for GM LS engines close-up view
Pack of LS performance valve springs for enhanced engine performance and stability
Close-up of LS performance valve springs held in white glove hand, showing detailed design and coil structure.
LS performance valve springs arranged in multiple groups on a white background
Close-up of LS performance valve springs arranged on a white background
LS performance valve springs set with multiple coil designs and finishes
LS performance valve springs for GM LS engines close-up view
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SUSUCAR

LS Valve Springs PAC1218 Racing Valve Springs for GM LS 4.8L 5.3L 6.0L Engines (.600'' Lift Rated)

$89.99
$59.99 In Stock Pre-Order Sold out
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INFO

Is your vehicle experiencing valve train problems?

Weak or worn valve springs can cause valve float, misfires, unstable valve control, and poor engine performance. These performance valve springs are designed for GM LS engine builds and camshaft upgrades requiring up to .600" valve lift.

Symptoms

  • Valve float at higher RPM
  • Engine misfires or rough running
  • Loss of power during acceleration
  • Unstable valve train operation
  • Worn or weak valve springs

Key Features

  • .600" Lift Rated: Supports performance camshaft applications requiring increased valve lift.
  • Improved Valve Control: Helps maintain proper valve movement at higher RPM.
  • Performance Upgrade: A practical choice for LS engine rebuilds, cam swaps, and performance builds.
  • Durable Construction: Built for demanding engine applications and consistent performance.


Fitment

  • 2011-2017: Chevrolet Caprice
  • 2008-2017: Chevrolet Express 2500
  • 2008-2017: Chevrolet Express 3500
  • 2001-2017: Chevrolet Silverado 2500 HD
  • 2007-2008: Chevrolet Silverado 3500 HD
  • 2010-2017: Chevrolet Silverado 3500 HD
  • 2016-2017: Chevrolet Suburban 3500 HD
  • 2008-2017: GMC Savana 2500
  • 2008-2017: GMC Savana 3500
  • 2001-2017: GMC Sierra 2500 HD
  • 2007-2017: GMC Sierra 3500 HD
  • 2014-2016: Chevrolet SS
  • 2004: Cadillac CTS
  • 2006-2007: Cadillac CTS
  • 2009-2015: Cadillac CTS
  • 1998-2002: Chevrolet Camaro
  • 2010-2015: Chevrolet Camaro
  • 2003: Cadillac Escalade ESV
  • 2005-2014: Cadillac Escalade ESV
  • 2014: Chevrolet Suburban
  • 2000-2014: GMC Yukon
  • 2002-2006: Cadillac Escalade
  • 2008-2013: Cadillac Escalade
  • 2002-2013: Cadillac Escalade EXT
  • 2007-2013: Chevrolet Avalanche
  • 1997-2013: Chevrolet Corvette
  • 1999-2013: Chevrolet Silverado 1500
  • 2000-2013: Chevrolet Tahoe
  • 2007-2013: GMC Sierra
  • 1999-2013: GMC Sierra 1500
  • 2001-2013: GMC Yukon XL 2500
  • 2009-2012: Chevrolet Colorado
  • 2007-2012: Chevrolet Suburban 2500
  • 2009-2012: GMC Canyon
  • 2000-2006: GMC Yukon XL 1500
  • 2010-2012: GMC Yukon XL 1500
  • 2008-2010: Hummer H3
  • 2008-2009: Buick LaCrosse
  • 2007-2009: Chevrolet Impala
  • 2000-2009: Chevrolet Suburban 1500
  • 2006-2009: Chevrolet Trailblazer
  • 2005-2009: GMC Envoy
  • 2008-2009: Pontiac G8
  • 2005-2006: Saab 9-7x
  • 2008-2009: Saab 9-7x
  • 2005-2006: Pontiac Grand Prix
  • 2008: Pontiac Grand Prix
  • 2004-2005: Buick Rainier
  • 2007: Buick Rainier
  • 2006-2007: Chevrolet Monte Carlo
  • 2007: GMC Sierra 1500 HD Classic
  • 2007: GMC Sierra 2500 HD Classic
  • 2007: GMC Sierra 3500 Classic
  • 2003-2007: Hummer H2
  • 2002-2006: Chevrolet Avalanche 1500
  • 2001-2003: Chevrolet Silverado 1500 HD
  • 2005-2006: Chevrolet Silverado 1500 HD
  • 2001-2006: Chevrolet Silverado 3500
  • 2003-2006: Chevrolet SSR
  • 2003-2006: Chevrolet Trailblazer EXT
  • 2003-2006: GMC Envoy XL
  • 2001-2003: GMC Sierra 1500 HD
  • 2005-2006: GMC Sierra 1500 HD
  • 2003-2006: Isuzu Ascender
  • 2004: Pontiac GTO
  • 2006: Pontiac GTO
  • 2005: GMC Envoy XUV
  • 1999-2004: Chevrolet Silverado 2500
  • 1999-2004: GMC Sierra 2500
  • 1998-2002: Pontiac Firebird

Details

Package Contents

16X Beehive Valve Spring

Specifications
  • Valve Spring Style: Beehive
  • Number of Springs Per Valve: Single
  • Inside Diameter of Outer Spring (in): 0.885 in.
  • 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: 1.200"
  • Open Load: 318 lbs
  • Spring Rate (lbs/in): 313 lbs./in.
Part Interchange

PAC1218

Reviews

FAQs

Who is this LS Valve Springs PAC1218 Racing Valve Springs intended for?

This product is relevant to vehicle owners, engine rebuilders, and repair professionals who are repairing or rebuilding the listed engine application.

Which vehicle applications are listed for this LS Valve Springs PAC1218 Racing Valve Springs?

The listed fitment information is: 2011-2017: Chevrolet Caprice 2008-2017: Chevrolet Express 2500 2008-2017: Chevrolet Express 3500 2001-2017: Chevrolet Silverado 2500 HD 2007-2008: Chevrolet Silverado 3500 HD 2010-2017: Chevrolet Silverado 3500 HD 2016-2017: Chevrolet Suburban 3500 HD 2008-2017: GMC Savana 2500 2008-2017: GMC Savana 3500 2001-2017: GMC Sierra 2500 HD 2007-2017: GMC Sierra 3500 HD 2014-2016: Chevrolet SS 2004: Cadillac CTS 2006-2007: Cadillac CTS 2009-2015: Cadillac CTS 1998-2002:.. Additional listed fitment notes: For 6.0L, 5.7L, and 5.3L engines..

What repair or replacement purpose is described for this LS Valve Springs PAC1218 Racing Valve Springs?

Is your vehicle experiencing valve train problems?

What confirmed feature or configuration makes this LS Valve Springs PAC1218 Racing Valve Springs suitable for the listed repair?

The listed product configuration includes Valve Spring Style: Beehive, Number of Springs Per Valve: Single, Inside Diameter of Outer Spring (in): 0.885 in., Outside Diameter of Outer Spring (in): 1.290 in..

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