2004.5-2010 GM 6.6L Duramax CNC Ported Cast Iron Cylinder Head (One Head) LLY/LBZ/LMMDuramax Ported Cast Iron Cylinder Head 2004. 5 2010 GM 6. 6L (One) LLY LBZ LMM 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.

the PPE transmission pan offers 3

0-inch PPE intercooler hot charge pipe

THIS KIT IS CARBON FACE WITH BLUE BACKLIGHTING

It is also compatible with the PPE Race Fuel Valve which helps maintain fuel rail pressure during high engine load/high fuel pressure conditions

even worse

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OEM UP-PIPES EVENTUALLY FAIL FROM CONSTANT TEMPERATURE AND PRESSURE FLUCTUATION

the tear- and compression-resistant silicone bushings are engineered to handle the high heat of the engine bay while isolating vibration much better than the rubber/polyurethane alternatives

POLISHED WATERPUMP PULLEY

It also features a 1/8” NPT port for an oil pressure/temperature sending unit

Available with compression ratios ranging from 15:1 - 16:5:1 (PPE Xtreme Damper and ARP main studs are available options)

55 CHEVY BELAIR 210 150 NOMAD