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Use these upper shock extension brackets to extend your factory-length shocks to allow your suspension to achieve the full amount of down travel available
forged steering-correction components
helping maintain consistent damping and prevent fluid leaks
complete replacement fuel pump modules
2004.5-2010 GM HD Cylinder Head (One) Cast Iron - 2004.5-2010 LLY/LBZ/LMM Ported (110100113) 2025-11-13-PRICED Use these upper shock extensionDescription The OEM Duramax cast aluminum cylinder heads fall short over time the different heat expansion rates between cast iron engine block and cast aluminum cylinder head cause head gasket scrubbing, and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and or cracking in high performance applications where excessive heat is introduced. PPEs new ported Cast Iron Cylinder Head is the ultimate upgrade to
US$ 39.00
US$ 34.00
US$ 51.01
