Duramax LLY Long Block Engine (NEW)

Posted on Tuesday, January 14, 2020

Title:

SKU:

Duramax-LLY

Brand:

Category:

Drivetrain & Differentials

Engine and Components

Horizontal Tabs

Description

Production	2004.5 to early 2006	Heads	Cast-aluminum with six 14mm diameter head bolts per cylinder (with sharing)
Design	90-degree V8	Valvetrain	OHV, four valves per cylinder, single cam
Bore	4.06 inches	Injection System	Bosch high-pressure common-rail, direct injection
Stroke	3.90 inches	Injectors	Bosch solenoid (outside valve cover)
Displacement	6.6L (403 ci)	Injection pump	Bosch CP3
Compression Ratio	17.5:1	Turbocharger	Garrett GT3788VA
Block	Deep Skirt, cast Iron (gray iron alloy)	Intercooler	Air-to-air
Rods	Forged-steel, fractured (cracked) cap	Horsepower	310hp @ 3000 rpm
Pistons	Cast-aluminum	Torque	520 lb-ft @ 1600 rpm (early '06: 605 lb-ft @ 1600 rpm)

Fitment

Fitment:

2005 - 2006 GMC Silverado 2500 HD

2005 - 2006 Chevrolet Sierra 2500 HD

Specs

Warranty:

6 Month Warranty

Fuel Type:

Diesel

Liter:

6.6 Liter