PPE Ported Cast Iron Cylinder Head Set For 2004.5-2010 GMC Chevy 6.6L Duramax 2014–2026 Indian Touring 4" backspacing

4" backspacing

making accessing your Jeep much easier

Dual outlet setup for high-horsepower applications

this intake delivers cooler air

2013-2016 Lincoln MKZ Hybrid

PPE Ported Cast Iron Cylinder Head Set For 2004.5-2010 GMC Chevy 6.6L Duramax 2014–2026 Indian Touring 4" backspacingThe 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 your