Duramax LLY / LBZ Cylinder Head 2004-2007 PRW TECH LINE 440-502-7256

PRW cylinder head for the Duramax LLY / LBZ (2004-2007). Listed for one application: Duramax LLY / LBZ engines, 2004-2007, in Chevrolet, GMC applications. Confirm your engine code and year against this listing before ordering.

What it does

The cylinder head carries the valves, seats and ports that decide how well the engine breathes, and it seals the top of the combustion chamber. Cracked, warped or eroded heads lose compression and push coolant into the cylinders. A new or remanufactured head restores the sealing surface and the port work the engine was designed around.

Fits

• Chevrolet vehicles with the Duramax LLY / LBZ engine, 2004-2007
• GMC vehicles with the Duramax LLY / LBZ engine, 2004-2007

Fixes

• a cracked or warped head after an overheat
• coolant loss into a cylinder
• a failed head gasket that took the head with it
• a build wanting better flow than the factory casting

What's included

• the cylinder head as described (bare or loaded, per the listing)

Specifications

• Brand: PRW
• Part number: TECH LINE 440-502-7256
• Shipping weight: 55.0 lb
• Condition: new
• Product type: Cylinder Head

Cross-reference

Replaces or interchanges with PRW TECH LINE 440-502-7256 for the Duramax LLY / LBZ. Check the part number stamped on your original before ordering.

Free shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? Ask a tech before you buy.