PPE Upgraded Cast Iron Ported Cylinder Head For 01-04 GMC Chevrolet 6.6L Duramax 2003-2006 mitsubishi lancer evolution ix incorporating a flashing amber effect

incorporating a flashing amber effect

2006-2009 GMC C5500 Topkick

Specially formed for improve suspension clearance as well as to allow for a wide range of wheel specs

providing unparalleled protection for your investment

1970-1974 GMC G35/G3500 Van

PPE Upgraded Cast Iron Ported Cylinder Head For 01-04 GMC Chevrolet 6.6L Duramax 2003-2006 mitsubishi lancer evolution ix incorporating a flashing amber effectThe OEM Duramax cast aluminum cylinder heads fall short over time the differing heat expansion rates between the 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 LB7 Cast Iron Cylinder Head is the ultimate upgrade for