Page 519 - 2021-22_EngineCatalogAP

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.
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.
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
Part No.
Application
Bore
Ring Size mm
Mahle Motorsports
MAH930029875
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
4.075"
3.0, 2.0, 3.0
MAH930036075
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
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.
Part No.
Description
Intake Runner
Intake Valve
Exhaust Valve
EDE79029
2001-04 6.6L LB7
230cc
1.299"
1.220"
EDE79119
2011-16 6.6L LML
230cc
1.299"
1.220"
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.
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
Style
Ring Shell
Outer Hub
Crank Balance
Total Weight
ATI917371
2001-05, 6.6L LB7, LLY
7.425"
3-Ring
Steel
Steel
External
19 lbs.
ATI917369
2006-07 6.6L LBZ, 2007-10 6.6L LMM
7.425"
3-Ring
Steel
Steel
External
19 lbs.
ATI918999D
Duramax Balancer Install/Removal Tool, Each
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.
2021-22 ENGINE BUILDER CATALOG 517
GM DURAMAX 6.6 DIESEL