Gm 8.1 liter (496) engine

[Kioti guy]

I Have been looking at a 2003 gm 3500 dually pickup that has the 8.1 w Alison auto. I was wondering if anybody had this combination, and what they thought about it. I was originally looking to get a diesel but came across this truck while searching.
The truck has 60,000 miles on it and is in beautiful condition. No Canadian winters ,absolutely no rust or marks.
Any advice would be appreciated, Thanks Craig

 

[devildog1]

Had one in a 2500HD Silverado 4X4, great power and lots of it. Good strong motor but not the best on fuel @ least for me towing a 12,000 lb. Holiday Rambler, about 8 towing, Hope this helps?
DevilDog

 

[Kioti guy]

Thank,that's about what I figured for mileage,Hopefully this truck wouldn't be my daily driver just my tow/ haul holiday vehicle...Craig

 

[dodge man]

I know they are common it boats also.

 

[mikehaugen]

Had one in a 2500HD Silverado 4X4, great power and lots of it. Good strong motor but not the best on fuel @ least for me towing a 12,000 lb. Holiday Rambler, about 8 towing, Hope this helps?
DevilDog

that is not that bad, it's about what I get pulling 8k with my ram 2500 with a 5.9 gas.

 

[Diamondpilot]

Its a good powerful motor. I have been around a lot of them, maybe 10 or so. They would be a good choice along with the Ford V10 for a guy who only pulls occasionally.

Most I have been around are in boats but they seem to like oil. Most use a qt to 1.5 qts every 50 hours in boats or about 3000 miles.

Chris

 

[scottie9]

I have that combo in a 2002 silverado 2500HD, works great, lots of torque and power, it does like its fuel, and uses some oil, but not a lot

Scottie

 

[tractorski]

I have an 8.1 with 338,000 miles,no joke! Great motor

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[HHR]

I have an 8.1 with 338,000 miles,no joke! Great motor

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How many hours?

 

[kansas john deere]

I dont have a 8.1 in a pickup but my motorhome has it along with the Allison 5 speed tranny. Like everyone say it likes the fuel but it pulls my 26,000 lb motorhome just fine in all sorts of hyway driving. I have to problem keeping up with my friends 40ft. 350HP Cummins in his motorhome. Actually when going up a long hill I usually pass him about half way up the hill...............KJD