VINCE

iTrader: (1)

I plan on adding cam/valvesprings/headers/ORY/tune within two weeks. Will I be able to compete against the mighty 8.1L when it comes to towing? I keep hearing I should have looked for the 8.1L instead of the 6.0L for towing.

cmiller

iTrader: (4)

what are you going to be towing

npb4me

iTrader: (1)

Yes, my dads 8.1L doesn't tow that great. So with your mods you will probably tow better then a stock 8.1L.

VINCE

iTrader: (1)

I only plan to tow my Supra or my Vette to track events. In the future probably more..

Moddoo

iTrader: (4)

The allison is what makes the 8.1 trucks so great.
As far as the engines go, with the right cam you should be able get up to speed quicker than a stock 8.1

zippy

You'll be in the same ballpark. Once you get the weight rolling you'll be just as good.

silver-mod-o

iTrader: (15)

What trans is behind it??? 80E?

1989k1500

iTrader: (23)

Have to be wouldnt it?

silver-mod-o

iTrader: (15)

maybe the manual?

npb4me

iTrader: (1)

The allison robs a lot of torque away from the 8.1L. I would take a 80E behind the 8.1L anyday. A Duramax and Allison make a great combo. We have owned both combinations, and the 8.1L with a 80E seem to have a little more get up and go then the 8.1L Allison.