Cylinder Head GM 6.6L Duramax Diesel LB7 Bare

Name: Cylinder Head GM 6.6L Duramax Diesel LB7 Bare
Brand: PROMAXX PERFORMANCE
SKU: 723-CHE872NB
Price: 665.71 USD
Availability: InStock

^$665⁷¹

Ships on 09/21/2026

Lowest Price Guarantee

LB7 2001-2004

2001-2004 GM 6.6L Duramax Diesel LB7
Bare
Sold Individually

Brand New Replacement Duramax Diesel Heads

ProMaxx Performance has the answer for the epidemic of cracked GM Duramax 6.6L cylinder heads. Designed by ProMaxx from an OE casting, ProMaxx improved the casting strength with greater thickness in all crack prone areas. Developed as a direct bolt-on replacement for fractured factory heads, ProMaxx Duramax cylinder heads are available as a fully-machined bare casting or fully assembled and pressure checked.

Features:

New Castings Are Thicker Than OEM
Improved Casting In ''Problem Areas''
Assembled Head Features New Components: Springs, Valves, Retainers, Locks, Etc.
Assembled Heads Come Ready To Bolt On
NO CORE CHARGE!

Part TypeCylinder Head

Product LineProMaxx Performance GM 6.6L Duramax Diesel Cylinder Heads

BrandPROMAXX PERFORMANCE

Part CategoryPerformance Parts

Part FitmentSemi Universal

Package Qty1

Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations

Cylinder Head GM 6.6L Duramax Diesel LB7 Bare

Brand New Replacement Duramax Diesel Heads

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