PPE Upgraded Cast Iron Cylinder Heads For 11-16 Chevrolet/GMC 6.6L LML Duramax mufflers Full Force Diesel New 175cc

Full Force Diesel New 175cc 75% Injectors are the perfect performance injectors for those in need of superior fuel flow

Max Tire Size: 37x12

Incorporates Delta Flow Technology

2011-Present Ford 6R140 Transmission

Lexus IS250C A/T Convertible 2012-2013

PPE Upgraded Cast Iron Cylinder Heads For 11-16 Chevrolet/GMC 6.6L LML Duramax mufflers Full Force Diesel New 175ccThe 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 Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine