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Cowpie

L96 6.0 Given More Life

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14 hours ago, sdeeter19555 said:

They had an Allison behind the 8.1l, no?

Sent from my SM-G950U using Tapatalk
 

Yes, the 5 speed Alison was used with the 8.1 big block. I believe the alison sucked away some of the 8.1s power. Great combo tho. Last forever!

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On 3/16/2018 at 6:26 AM, sdeeter19555 said:

They had an Allison behind the 8.1l, no?

Yes they did. Arguably one of the most bulletproof gas engine/transmission combos ever produced. 

23 hours ago, fjtort2 said:

Yes, the 5 speed Alison was used with the 8.1 big block. I believe the alison sucked away some of the 8.1s power. Great combo tho. Last forever!

I've heard that too....that the Allison was a power robber. The 8.1 was still a beast though! 

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im trying to imagine 8.1 liter in my 2500. Whew that would be something. Mighty interesting 

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6.0L L96 TECH SPECS
Type:    6.0L Gen IV V-8 Small Block
Displacement:    5967 cc
Engine Orientation:    Longitudinal
Compression Ratio:    9.7:1
Valve Configuration:    Overhead valves
Valves per Cylinder:    2
Assembly Sites:    Romulus, MI, St. Catharines, Ontario, and Silao, Mexico
Valve Lifters:    Hydraulic roller
Firing Order:    1 - 8 - 7 - 2 - 6 - 5 - 4 - 3
Bore x Stroke:    101.6 x 92 mm
Fuel System:    Sequential Fuel Injection
Fuel Type:    Regular Unleaded, E85 Flex Fuel
Horsepower:    360 hp (268 kW) @ 5400 rpm*
Torque:    380 lb-ft (515 Nm) @ 4200 rpm*
Maximum Engine Speed:    6000 rpm*
Emissions Controls:    Catalytic converter, three-way catalyst, positive crankcase ventilation
Block:    Cast iron
Cylinder Head:    Cast aluminum
Intake Manifold:    Composite
Exhaust Manifold:    Cast nodular iron
Main Bearing Caps:    Powder metal
Crankshaft:    Cast nodular iron with undercut and rolled fillets
Camshaft:    Hollow steel
Connecting Rods:    Powder metal

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On 3/16/2018 at 8:46 PM, fjtort2 said:

Yes, the 5 speed Alison was used with the 8.1 big block. I believe the alison sucked away some of the 8.1s power. Great combo tho. Last forever!

5 speed Alison behind the 8.1 in the pickups, 4L80E was behind the 8.1 in the Suburbans and Yukons which yielded better mpg and freed up more power.

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