CAST PISTONS
GM Duramax 6.6L Diesel Stock replacement cast piston sets include specially-coated skirts, and are sold in sets of four with wrist pins, wrist pin locks, and piston rings. Offered in standard or .020" oversize. Specify sizing when ordering. Part No. Description Bore Ring Size mm Mahle M772243708WR Piston Set w/Rings, LH, 4-Pack, 2006-10 6.6L LLY/LBZ/LMM 4.055" 3.0, 2.0, 3.0 M772243709WR Piston Set w/Rings, RH, 4-Pack, 2006-10 6.6L LLY/LBZ/LMM 4.055" 3.0, 2.0, 3.0 M772243451WR Piston Set w/Rings, LH, 4-Pack, 2001-05, 6.6L 4.055" 3.0, 2.0, 3.0 M772243452WR Piston Set w/Rings, RH, 4-Pack, 2001-05, 6.6L 4.055" 3.0, 2.0, 3.0 Performance Cast Duramax Pistons Duramax Performance Cast PowerPak pistons are designed for street/strip or pulling trucks making 400-1000 HP. Machined from OE castings. Feature performance-combustion piston bowls with design features intended to reduce erosion issues by high pressure, long duration, advanced injection timing, lower compression ratio (.5 to 1.5 points) for more flexi- bility for high-output tuning. Fully radiused valve pockets reduce drag and MAHLE's proprietary Grafal skirt coating reduces drag and increases scuff resistance. Rings, pins, and clips included. Part No. Application Bore Ring Size mm Mahle Motorsports MAH930029875 4.075" 3.0, 2.0, 3.0
2001-10 6.6L LB7, LLY, LBZ, LMM Power Pack Piston Set, Cast M142 Alloy Coated Skirt Pistons, -41.8cc, .075" Deep Valve Pockets 16.5 Compression Ratio, 3.898" Stroke, 6.417" Rod, 860 Cubic Inch 2001-10 6.6L LB7, LLY, LBZ, LMM Power Pack Piston Set, Cast M142 Alloy Coated Skirt Pistons, -40.7cc, No Valve Pockets, 16.8 Compression Ratio, 3.898" Stroke, 6.417" Rod, 863 Cubic Inch
MAH930036075
4.075" 3.0, 2.0, 3.0
CYLINDER HEADS
GM Duramax 6.6L Diesel Edelbrock GM Duramax 6.6L Aluminum Cylinder Heads Direct bolt-on cylinder heads offer increased air flow, while allowing full com- patibility with all OEM Duramax components. Choose from heads for LB7 or LML engines. Sold each, fully assembled.
Intake Runner 230cc 230cc
Intake Valve
Exhaust Valve 1.220" 1.220"
Part No.
Description
EDE79029 EDE79119
2001-04 6.6L LB7 2011-16 6.6L LML
1.299" 1.299"
HARMONIC BALANCERS
ATI Super Dampers ATI Super Damper for Duramax diesel engines provides balanced dampening of torsional crankshaft vibrations at all RPM. Features steel shells and crankshaft hub, 3 elastomers, and a six-groove ser- pentine pulley. Exceeds SFI 18.1 specifications.
Ring Shell
Outer Hub
Crank Balance
Total Weight 19 lbs. 19 lbs.
Part No.
Application
Diameter Style
ATI917371 ATI917369 ATI918999D
2001-05, 6.6L LB7, LLY
7.425" 3-Ring Steel 7.425" 3-Ring Steel
Steel External Steel External
2006-07 6.6L LBZ, 2007-10 6.6L LMM
Duramax Balancer Install/Removal Tool, Each
Fluidampr Performance Diesel Harmonic Balancer Fluidampr performance diesel damper removes torsional vibrations at idle through the engine's RPM that can damage a crankshaft and engine bearings. Computer balanced viscous damper reduces vibration and increases 5.9 HP and 17.7 ft/lbs of torque on Duramax engine. Three-piece design. Part No. Application Diameter Crank Balance Total Weight FLU890101 2001-05, 6.6L Duramax LLY/LB7 8.375" External 23.9 lbs. FLU830121 2011-16, 6.6L Duramax LML/LGH 8.375" External 23.9 lbs.
517 2021-22 ENGINE BUILDER CATALOG
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