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#839527 - Wed Mar 28 2012 10:16 PM 1966 GMC truck
Doug 57 Offline
Shop Shark
Registered: Wed Apr 13 2005 12:00 PM
Posts: 1124
Loc: Booger Hollow (near Clayton, G...
I saw a very clean original 1966 GMC today. It has a V6 and a 3 speed on the column. I have a friend that may be interested, but I am unfamiliar with the V6 in these trucks

How good or bad are these engines?

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#839562 - Thu Mar 29 2012 01:10 AM Re: 1966 GMC truck [Re: Doug 57]
4-5-6 Chevy Trucks Offline
Shop Shark
Registered: Wed Nov 17 2004 12:00 PM
Posts: 2720
Loc: Kansas City, KS
This site will tell you everything you ever wanted to know about the GMC V6 engines:

www.6066gmcguy.org
_________________________
Tony Smith
4-5-6 Chevy Trucks
501 Scott Avenue
Kansas City, KS 66105
913-207-7789
4-5-6chevytrucks@sbcglobal.net
Photos: http://www.flickr.com/photos/4-5-6chevytrucks/sets/
Custom Parts: http://www.flickr.com/photos/4-5-6chevytrucks/sets/72157627022818563/
www.4-5-6chevytrucks.com
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#839609 - Thu Mar 29 2012 08:53 AM Re: 1966 GMC truck [Re: 4-5-6 Chevy Trucks]
jon1963 Offline
Shop Shark
Registered: Thu Oct 29 2009 03:51 PM
Posts: 596
Loc: fayetteville, nc
The engine was grossly overbuilt. Will probably outlast the truck
_________________________
http://s971.photobucket.com/albums/ae197/jon63c10
1963 c-10 shortbed stepside 427 BBC T16 HD 3 speed
1963 c-10 shortbed fleetside 348 "w" 1st gen big block & powerglide
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#840293 - Sat Mar 31 2012 10:17 PM Re: 1966 GMC truck [Re: jon1963]
R-Bo Offline
Shop Shark
Registered: Mon Feb 12 2007 12:00 PM
Posts: 480
Loc: Charlotte, NC
Only problem I have with them are some of the parts can be harder to find than more common engines. Other than that they are cool engines that you don't see every day.
_________________________
R-Bo

1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family
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#840905 - Tue Apr 03 2012 02:09 PM Re: 1966 GMC truck [Re: R-Bo]
oem4me Offline
Wrench Fetcher
Registered: Fri Apr 04 2008 12:36 AM
Posts: 126
Loc: burbank ca
I'm no expert, but those v-6's are well known for both durability and gas consumption. lots of gas consumption.
_________________________
1966 Chevy C-10 Longbed
In the Stovebolt Gallery[/b]
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#840934 - Tue Apr 03 2012 04:59 PM Re: 1966 GMC truck [Re: oem4me]
Mearl Offline
Wrench Fetcher
Registered: Sat Aug 07 2010 08:52 AM
Posts: 116
Loc: So. Central Mo.
Dad bought a new GMC 2 ton in 63 with the 305, for a log truck. He drove it until 67 and never touched the engine, other than regular tune-ups; they were very tough. The only problem was that a 292 in a similar Chevy would out pull it with a load. In 67 he bought a new Chevy with a 327, the motor lasted about 50,000 miles before needing rebuilt. After the 2nd rebuild he replaced it with a 350 which had about the same life span.
_________________________
'65 C-10, 65 L-60, 65 C-80, 72 C-60 & and a bunch of old Chevy cars.
Never time to do it right, always time to do it over.
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#841556 - Thu Apr 05 2012 07:43 PM Re: 1966 GMC truck [Re: Mearl]
Doug 57 Offline
Shop Shark
Registered: Wed Apr 13 2005 12:00 PM
Posts: 1124
Loc: Booger Hollow (near Clayton, G...
The truck was sold before my friend had a chance to look at it.

It was in decent condition, and the asking price was reasonable.
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#841688 - Fri Apr 06 2012 08:46 AM Re: 1966 GMC truck [Re: Doug 57]
Mearl Offline
Wrench Fetcher
Registered: Sat Aug 07 2010 08:52 AM
Posts: 116
Loc: So. Central Mo.
A 66 GMC 4X4 short step side sold at Barret-Jackson yesterday. It still had the 305 but it had dual flowmasters and tailpipes out the back. I wondered what it would sound like; I've never liked the sound of a 6cylinder, straight or V-6.
_________________________
'65 C-10, 65 L-60, 65 C-80, 72 C-60 & and a bunch of old Chevy cars.
Never time to do it right, always time to do it over.
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#841862 - Fri Apr 06 2012 10:34 PM Re: 1966 GMC truck [Re: Mearl]
R-Bo Offline
Shop Shark
Registered: Mon Feb 12 2007 12:00 PM
Posts: 480
Loc: Charlotte, NC
No one makes headers for them so I guess the flowmasters were with the cast stock manifolds.
_________________________
R-Bo

1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family
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#841919 - Sat Apr 07 2012 08:25 AM Re: 1966 GMC truck [Re: Mearl]
Hot Rod John Offline
Shop Shark
Registered: Thu Jul 10 2008 08:45 PM
Posts: 1326
Loc: Central Colorado
Originally Posted By Mearl
A 66 GMC 4X4 short step side sold at Barret-Jackson yesterday. It still had the 305 but it had dual flowmasters and tailpipes out the back. I wondered what it would sound like; I've never liked the sound of a 6cylinder, straight or V-6.


Tiny photo of the truck can be found here, type in lot number "60"

http://www.barrett-jackson.com/applicati...p;ed=04/07/2012
_________________________
In the Stovebolt Gallery ~~ "The Orange Crate" 1965 C10 SWB Step Side Build Thread

Inspired to be different. Different in a way of my own, not in a way that others strive.
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