Specifications


View Mash Motors Inc. Specifications

Mash Motors Inc. specializes in Duramax Diesel Conversions for the Hummer H1, H2 and large SUVS. We were the first to successfully convert the Hummer H3 with the Vortec 6.0 liter engine and 4L60HD transmission by GM. Additionally, we provide the latest in aftermarket parts and accessories to complete your conversion.

6.6L Duramax LBZ Duramax LBZ Specs & Info
Mash-Motors-Kansas-2006-2007-LBZ-Duramax
Engine6.6L Duramax LBZ, 90 degree V8 diesel
Years Produced2006 - 2007
VIN CodeD (8th digit of VIN)
Displacement403 cubic inches, 6.6 liters
Assembly SiteDMAX engine plant, Moraine, Ohio
Head/Block MaterialAluminum cylinder heads, cast iron engine block
Compression Ratio16.8 : 1
Firing Order1-2-7-8-4-5-6-3
Bore4.055" (103 mm)
Stroke3.897" (99 mm)
AspirationTurbocharged & intercooled - Garrett VVT (variable vane turbocharger), air-to-air intercooler
InjectionDirect injection, 26,000 psi Bosch high pressure common rail with CP3 injection pump and 7 hole fuel injectors
ValvetrainOHV (overhead valve), 4 valves per cylinder
Oil Capacity10 quarts w/ filter
Engine WeightApprox. 835 lbs
Max Engine Speed3,250 rpm
Emissions EquipmentDiesel oxidation catalyst (DOC) and exhaust gas recirculation (EGR)
Peak Horsepower360 hp @ 3,200 rpm
Peak Torque650 lb-ft @ 1,600 rpm
Engine DimensionsLength: Approx 30"; Width: Approx 30"; Height: Approx 32"
6.6L Duramax LML Duramax LML Specs & Info
Mash-Motors-Kansas-2010-2016-LML-Duramax
Engine6.6L Duramax LML, 90 degree V8 diesel
Assembly LocationDMAX assembly plant in Moraine, Ohio
Years Produced2011 - 2016 model years
VIN Code8 (8th digit of VIN)
Displacement403 cubic inches, 6.6 liters
Assembly SiteDMAX engine plant, Moraine, Ohio
Head/Block MaterialAluminum cylinder heads, cast iron engine block
Compression Ratio16.0 : 1
Firing Order1-2-7-8-4-5-6-3
Bore4.055" (103 mm)
Stroke3.897" (99 mm)
AspirationTurbocharged & intercooled - Garrett variable vane (VVT), variable geometry turbocharger (VGT) with air-to-air intercooler
InjectionDirect injection, 2000 bar (~30,000 psi) Bosch high pressure common rail w/ CP4 injection pump and Piezo injectors
ValvetrainOHV (overhead valve), 4 valves per cylinder, mechanical roller lifters
Oil Capacity10 quarts w/ filter (9.5 liters)
Fuel CompatibilityUltra low sulfur diesel (ULSD) or max B20 biodiesel blend
Max Shift RPM3,000 rpm
Peak Horsepower397 hp @ 3,000 rpm
Peak Torque765 lb-ft @ 1,600 rpm
Engine DimensionsLength: Approx 30"; Width: Approx 30"; Height: Approx 32"
6.6L Duramax L5P Specs
Mash-Motors-Kansas-2017-L5P-Duramax
Engine6.6L Duramax L5P, 90° V-8 diesel
Assembly LocationDMAX assembly plant in Moraine, Ohio
Years Produced2017 -
VIN CodeY
Displacement403 cubic inches, 6.6 liters
Assembly SiteDMAX engine plant, Moraine, Ohio
Head/Block MaterialAluminum cylinder heads, cast iron engine block w/ induction hardened cylinder walls
Compression Ratio16.0 : 1
Firing Order1-2-7-8-4-5-6-3
Bore4.055" (103 mm)
Stroke3.897" (99 mm)
AspirationElectronically controlled and actuated variable geometry turbocharger, air-to-air intercooler
InjectionDirect injection, 29,000 psi high pressure common rail, solenoid injectors delivering up to 7 injection events per combustion sequence
ValvetrainOHV (overhead valve), 4 valves per cylinder (32 valve)
Oil Capacity10 qts w/ filter
Fuel CompatibilityUltra low sulfur diesel (ULSD) or max B20 biodiesel blend
Max Engine Speed3,450 rpm
Peak Horsepower445 hp @ 2,800 rpm
Peak Torque910 lb-ft @ 1,600 rpm
LS3 6.2L TECH SPECS
Mash-Motors-Kansas-GM-LS3-6.2-Crate-engine
Engine Type LS-Series Gen IV Small-Block V-8
Displacement376ci (6.2L)
Bore x Stroke4.065'' x 3.622'' (103.25 x 92mm)
BlockCast-aluminum with six-bolt, cross-bolted main caps
CrankshaftNodular iron
Connecting RodsPowdered metal
PistonsHypereutectic aluminum
Camshaft TypeHydraulic roller
Valve Lift.551'' intake / .522'' exhaust
Camshaft Duration (@.050 in.) 204° intake / 211° exhaust
Cylinder Heads Aluminum L92-style port; ''as cast'' with 68cc chambers
Valve Size2.165'' intake / 1.590'' exhaust
Compression Ratio10.7:1
Rocker ArmsInvestment-cast, roller trunnion
Rocker Arm Ratio 1.7:1
Recommended Fuel92 octane
Maximum Recommended rpm6600
Reluctor Wheel58X
BalancedInternal