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GM Vortec 8100

IceCreamAssassin

When in doubt, throttle out
TCG Premium
Jan 28, 2011
12,481
16,820
Cary
I drove one for about 2 years, best truck I've ever owned. My father also used it to tow his 28 foot boat. I suggest you get a pick up and not the avalanche. The Avalanche did not come with the Allison transmission, but the pick ups did. Makes a huge difference. Also I did average 11mpg towing or not lol.
 

nick122590

TCG Elite Member
Jul 10, 2011
2,008
6
IOWA
if I wasnt stuck on ls powered vehicles I would have found my truck with an 8.1 and Allison.
my buddy has the same truck as me with it and it does tow like a champ. he put long tubes on it with straight pipes literally going straight back from each header. its the only vehicle ive ever liked straight piped. rumbles like a damn Harley at low rpms
 

Wolfman

TCG Elite Member
Jul 6, 2010
1,712
4
Evans Mills, New York
The 8.1 has LSx style heads and the LSx firing order. ;-) it's like an LSx big block!

I found 2 local ones. An avalance for 9500 and a 3500 dually for 11.4k

Both have 120k miles

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