| 4,6,8 cadillac engine in GMC? [message #218670] |
Fri, 16 August 2013 20:47  |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Was wondering if the 4,6,8 cadillac engine would be a viable engine swap? I've read of the early 80's cadillac engine...is there a updated version of this that could be used in the GMC?
Tom Geiger
76 Eleganza II
KCMO
[Updated on: Fri, 16 August 2013 21:01] Report message to a moderator |
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| Re: 4,6.8 cadillac engine in GMC? [message #218673 is a reply to message #218670] |
Fri, 16 August 2013 20:52  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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The 4 6 8 is something GM would like to sweep under the rug. An idea too soon for the tech of the day. Warranty issues. Cylinder deactivation isn't of much use in a 11,000 # vehicle like the TZE. Now a 4L80E with a chain would be cool.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] 4,6.8 cadillac engine in GMC? [message #218699 is a reply to message #218670] |
Fri, 16 August 2013 23:57 |
Jeff Marten
Messages: 199
Registered: August 2013
Karma: 1
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The late '90s NorthStar would be a great powerplant. I had a '98 Olds Aurora with the 4.0L V8, what an awesome car. I was surprised to sell it instead of part it out at 196k miles. Usually those NorthStars dump a head gasket long before that; I must have been lucky enough to have a PO that changed out the engine-killing Dexcool on a regular basis. The 4.6L Caddy version had 300+ HP and made good torque too.
> To: gmclist@temp.gmcnet.org
> From: tgeiger@burnsmcd.com
> Date: Fri, 16 Aug 2013 20:47:10 -0500
> Subject: [GMCnet] 4,6.8 cadillac engine in GMC?
>
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> Was wondering if this would be a viable engine swap? I've read of the early 80's cadillac engine...is there a updated version of this that could be used in the GMC?
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1985 Gulf Stream 34' Sun Stream
1964 Falcon 'Vert
1980 Bradley GTE
1999 Chevy Tahoe
2005 Saab 93 Aero
1987 Suzuki Intruder 1400
1978 Glastron/Carlson CV23
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| Re: 4,6.8 cadillac engine in GMC? [message #218726 is a reply to message #218673] |
Sat, 17 August 2013 08:44 |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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| JohnL455 wrote on Fri, 16 August 2013 20:52 |
The 4 6 8 is something GM would like to sweep under the rug. An idea too soon for the tech of the day. Warranty issues. Cylinder deactivation isn't of much use in a 11,000 # vehicle like the TZE. Now a 4L80E with a chain would be cool.
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Even if the 4,6,8 did work well in the automobile, considering the load that the MH puts on the motor most of the time, I doubt that it would spend much time in the 4 or 6 mode any way. JMHO
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
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| Re: 4,6.8 cadillac engine in GMC? [message #218727 is a reply to message #218726] |
Sat, 17 August 2013 08:46 |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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| Larry wrote on Sat, 17 August 2013 08:44 |
| JohnL455 wrote on Fri, 16 August 2013 20:52 |
The 4 6 8 is something GM would like to sweep under the rug. An idea too soon for the tech of the day. Warranty issues. Cylinder deactivation isn't of much use in a 11,000 # vehicle like the TZE. Now a 4L80E with a chain would be cool.
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Even if the 4,6,8 did work well in the automobile, considering the load that the MH puts on the motor most of the time, I doubt that it would spend much time in the 4 or 6 mode any way. JMHO
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And, the 4,6,8 motor was a 368 CID, not enough to power the 12K lbs that the GMC weighs....
Larry
78 Royale w/500 Caddy
Menomonie, WI.
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