I was looking on Ebay the other day for any publications for my car and came across this for $11.99 plus shipping.
Service bulletin for the new for 1964 "273 V-8 engine"
- Thread starter Claydart
- Start date
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It's 15 pages of all the technical info on the 273! This is one of the pieces of info that I had been looking for for a long time.
Beams
Well-Known Member
Interesting that they call it a Charger 273!
Dodge = Charger.
Plymouth = Commando
You might want to scan the pages and send them to Hamtramic Historical and mymopar.com
That's very cool!
I was thinking of scanning the pages and posting them here, but if I scan them, I can do both.
Dodge was the Charger. Plymouth was Commando.
Beams
Well-Known Member
I know that much…but it says it’s the 180hp version. I thought the Charger/Commando name was only used on the 235hp motors.
So did they call the 180hp version Charger/Commando for only 1964, or did they make the 235hp motors available partway through the 1964 model year?
Good question. I hadn't heard of that name attached to 64'. No 4 barrel until 65 but when was the information printed? Late 64 info could be for the 65 4 barrel release.
There are reproductions of the 1964 Plymouth TSM that include the 273 and the Barracuda Service Bulletins. I had someone lend it to me so I could gather some information. 
This only included a 2bbl intake
This only included a 2bbl intake
Beams
Well-Known Member
Shows January 15, 1964 toward the top right. May be one of those “who knows” things.
The one I have is December 23, 1963... so seems like they were releasing information as it became available
I posted these as well as the D/Dart specs several years ago
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