E-Bodies.org Cuda Challenger Forum

Technical Shop => Engine, Transmission & Rear End => Topic started by: Matt13 on August 31, 2020, 10:11:40 PM

Title: Correct engine color
Post by: Matt13 on August 31, 2020, 10:11:40 PM
Just picked up a 340 long block. Casting date of 5/30/72. It's reddish-orange. From what I've read, it should be blue, correct?
Title: Re: Correct engine color
Post by: RUNCHARGER on August 31, 2020, 10:31:07 PM
Correct.
Title: Re: Correct engine color
Post by: Matt13 on August 31, 2020, 11:00:17 PM
Thanks!
Title: Re: Correct engine color
Post by: 340Rallye on October 03, 2020, 08:57:16 AM
has it always been Chrysler corporate blue.  or, was there another name?
Title: Re: Correct engine color
Post by: 6bblgt on October 03, 2020, 12:12:11 PM
Quote from: 340Rallye on October 03, 2020, 08:57:16 AM
always been Chrysler corporate blue.

:iagree:
Title: Re: Correct engine color
Post by: Fish Tale on October 03, 2020, 09:03:18 PM
What was the month again in 71 where they switched from orange to blue?  May/June?
Title: Re: Correct engine color
Post by: 6bblgt on October 03, 2020, 09:31:32 PM
it varied by plant and application (engine assembly: body - transmission - A/C?)
but:
GW340  (1971 Windsor) 340 engines are ORANGE
GM340  (1971 Mound Rd.) 340 engines are CORPORATE BLUE
Title: Re: Correct engine color
Post by: MoparLeo on October 03, 2020, 11:36:05 PM
Here is some more info.
http://www.mymopar.com/enginecolors.htm
Title: Re: Correct engine color
Post by: 6bblgt on October 04, 2020, 12:09:25 AM
Quote from: MoparLeo on October 03, 2020, 11:36:05 PM
Here is some more info.
http://www.mymopar.com/enginecolors.htm

:stop: proceed with caution using that list for reference

doesn't show both ORANGE & BLUE for 1971 340s
HEMIs were "race HEMI orange" thru 1968
1969 was the first year for "street HEMI orange" (used on HEMIs, 383HPs & 440HPs)
Title: Re: Correct engine color
Post by: 76orangewagon on October 04, 2020, 03:46:05 AM
My 1971 Mounds Rd 340 that had a final assembly date of March 19,1971 was Corporate Blue..I found Blue paint on the exhaust manifold heat riser counterweight when I soaked it in Evaporust during disassembly.
Title: Re: Correct engine color
Post by: cudaize on October 04, 2020, 12:31:25 PM
The engine, original to the car, in my 71 340 cuda with SPD March 31 is a blue mound road engine.  The engine assembly date is either 3500 or 3506, I can't make out the 4th digit for sure, the date would be Feb 26, 1971 or march 4, 1971.
Title: Re: Correct engine color
Post by: ScottSmith_Harms on October 04, 2020, 02:22:50 PM
Quoteit varied by plant and application (engine assembly: body - transmission - A/C?)
but:
GW340  (1971 Windsor) 340 engines are ORANGE
GM340  (1971 Mound Rd.) 340 engines are CORPORATE BLUE 

This
:iagree: