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Re: 340 engine color [Re: oem6pak] #2498443
05/20/18 11:43 PM
05/20/18 11:43 PM
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Hazlet nj
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Joemoy29 Offline
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Hazlet nj
So a 72 cuda 340 would have a late 71 block? And that would be blue or orange?

Re: 340 engine color [Re: oem6pak] #2498468
05/21/18 12:38 AM
05/21/18 12:38 AM
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cdp Offline
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Starting in late 71, 340's were corporate blue until the end of production in 73.

Re: 340 engine color [Re: oem6pak] #2498481
05/21/18 01:15 AM
05/21/18 01:15 AM
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Spokane Washington
ScottSmith_Harms Offline
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Quote:
Starting in late 71, 340's were corporate blue until the end of production in 73.


Correct, sometime around March 1971 they changed engine plants from Windsor Ontario Canada to Mound Road Michigan. When the plant change occurred so did the color. Windsor engines were orange, Mound Road engines were blue. Easy way to tell is the assembly info stamped onto the face of the block under the drivers side cylinder head, GW340 = Windsor (Orange) and GM340 = Mound Road (blue).

Re: 340 engine color [Re: oem6pak] #2500749
05/26/18 07:14 PM
05/26/18 07:14 PM
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Some orange engines made it into early April SPD cars also

Re: 340 engine color [Re: oem6pak] #2500786
05/26/18 08:41 PM
05/26/18 08:41 PM
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ScottSmith_Harms Offline
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Quote:
Some orange engines made it into early April SPD cars also


Yes some did, in May as well and possibly even later. The common denominator with them is that all of them were assembled in the fall of 1970 at the Windsor Ontario plant (orange engines). There are several theories as to what happened but likely an inventory screw up of some kind or another.

Re: 340 engine color [Re: oem6pak] #2501174
05/27/18 11:49 PM
05/27/18 11:49 PM
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Sacramento,California
JRepucci Offline
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My June 1st SPD cuda has a blue engine

and

The passenger side valve cover doesn't have the large wire loom near the choke heat stirthepot

Re: 340 engine color [Re: oem6pak] #2501189
05/28/18 12:35 AM
05/28/18 12:35 AM
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Spokane Washington
ScottSmith_Harms Offline
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Jason, that is another detail item that changed in 1971 when when they switched plants, they used 3 small tabs rather than the two small tabs and a large center tab in years past. There are several other things that varied as well, some examples: "Made in Canada" coils were now Made in USA, intake manifold casting number was the same but the shape changed, etc.

Re: 340 engine color [Re: oem6pak] #2501193
05/28/18 12:50 AM
05/28/18 12:50 AM
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Not to high jack this post but I have a color question on my 71 340 Demon, build date 9 - 26 - 70
What should be the color of the 340 engine?
thanks

Last edited by davesmopars; 05/28/18 01:00 AM.

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Re: 340 engine color [Re: oem6pak] #2501194
05/28/18 12:51 AM
05/28/18 12:51 AM
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Spokane Washington
ScottSmith_Harms Offline
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The answer is higher up in this post but quick answer: Orange

Re: 340 engine color [Re: ScottSmith_Harms] #2501196
05/28/18 12:56 AM
05/28/18 12:56 AM
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Originally Posted By ScottSmith_Harms
The answer is higher up in this post but quick answer: Orange

Just making sure thanks


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Re: 340 engine color [Re: ScottSmith_Harms] #2501211
05/28/18 02:10 AM
05/28/18 02:10 AM
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Sacramento,California
JRepucci Offline
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Originally Posted By ScottSmith_Harms
Jason, that is another detail item that changed in 1971 when when they switched plants, they used 3 small tabs rather than the two small tabs and a large center tab in years past. There are several other things that varied as well, some examples: "Made in Canada" coils were now Made in USA, intake manifold casting number was the same but the shape changed, etc.



Thanks Scott.

The valve cover difference I have know for years... I'll look at the coil. I have an extra set of cover if you need some.

Re: 340 engine color [Re: oem6pak] #2501219
05/28/18 02:33 AM
05/28/18 02:33 AM
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Spokane Washington
ScottSmith_Harms Offline
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Here are the intakes.

*Thanks on the V.covers but I don't need them.

Intake Side By Side 340 71 (2).jpg
Re: 340 engine color [Re: JRepucci] #2530466
08/02/18 01:44 PM
08/02/18 01:44 PM
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Round Lake Beach, Illinoisy
Rhinodart Offline
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Originally Posted By JRepucci
Originally Posted By ScottSmith_Harms
oem6pak, it's all good...All 3 of us are friends and 340 owners/fans/historians. Over the years we have discussed this subject many times, usually when one of us finds something odd or out of the "norm" to report. The VAST majority of 69 340's were painted turquoise (something I'm sure we all agree on). However a few documented exceptions, and some undocumented exceptions, have been found. Most attribute these exceptions to model year change overs where the engine paint changed colors, etc. If you don't know what your engines original color is go with Turquoise, it's a pretty safe bet that it was that color originally.

.02



709 SPD.... paint it blue stirthepot


So what exact paint did you use to paint yours "blue"? It is not the corporate blue that was used in 1970 and later, and not the turquoise, so what it is and where did you find it? shruggy

Last edited by Rhinodart; 08/02/18 01:55 PM.

The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

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