The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 2002 8.1 L 2500 HD, Chevy Silverado…thoughts ?

4793 · 11-12-2023, 08:43 PM

My '02 avatar truck is a 4x4 with the 8.1/6 spd manual combination and I like it a lot. I was able to test out a '03 with the 6.0/5 spd at the same time. The 6.0 had to be wound up to do much of anything, while the 8.1 was more like a diesel and could lug at lower RPM- and for whatever reason that appealed to me.

It will pull- and works up a powerful thirst. If the one you're looking at has an Allison, I believe it's possible it has 3.73s instead of 4.10s but not sure it would make much difference. They also have the traditional big-block thing of using a little oil- checking the level more often was the biggest adjustment to make.

11-12-2023, 08:43 PM	#3
4793 Registered User Join Date: Dec 2022 Location: rural Iowa Posts: 21	Re: 2002 8.1 L 2500 HD, Chevy Silverado…thoughts ? My '02 avatar truck is a 4x4 with the 8.1/6 spd manual combination and I like it a lot. I was able to test out a '03 with the 6.0/5 spd at the same time. The 6.0 had to be wound up to do much of anything, while the 8.1 was more like a diesel and could lug at lower RPM- and for whatever reason that appealed to me. It will pull- and works up a powerful thirst. If the one you're looking at has an Allison, I believe it's possible it has 3.73s instead of 4.10s but not sure it would make much difference. They also have the traditional big-block thing of using a little oil- checking the level more often was the biggest adjustment to make.