454 Medium Duty V-8 - The 1947 - Present Chevrolet & GMC Truck Message Board Network



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454 Medium Duty V-8

02-17-2015, 11:14 AM

DirtyLarry

Windy Corner of a Dirty Street

Join Date: Jun 2003

Location: Pueblo West, Colorado

Posts: 2,926

Re: 454 Medium Duty V-8

Quote:

Originally Posted by Bob B.

I don't think the L21's were tall deck, though all the 8.1's were. Of course, the '79-'80 would have been a Mark IV, the '99 a Mark VI. .

I’m privy to a lot of things 8.1L related and never known it to be a tall deck. I’m going to have to disagree on that one.

Vortec 8.1L because life is too short to tolerate underpowered vehicles

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