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67 396 - IAR code ?!

Posted by Cam Milne User icon on 6/29/2017, 8:44 am

I was looking at an expired eBay auction for a 67 Caprice coupe, L35 M20 car. The engine code was T01113IAR. I realize that generally the 3-letter suffix didn't appear until 1970 models except for some late 69s and also certain Holley equipped 1966 big blocks. Normally I would expect an IA code for a manual L35 engine, but IAR? What gives?

Link: eBay item number: 332230491184

Re: 67 396 - IAR code ?!

Posted by CTK1968 User icon on 6/29/2017, 9:30 am, in reply to "67 396 - IAR code ?!"

That engine is from a '66. The car was also an automatic originally if I'm reading the trim tag right.
Chad

Re: 67 396 - IAR code ?!

Posted by Paul Winvoices User icon on 6/29/2017, 11:50 am, in reply to "Re: 67 396 - IAR code ?!"

Yep originally an automatic

Paul

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Re: 67 396 - IAR code ?!

Posted by 68ss427 User icon on 6/29/2017, 9:13 am, in reply to "67 396 - IAR code ?!"

The R is for Rochester Q-jet. I think this was done to some until 1967 it seems. Don S

Re: 67 396 - IAR code ?!

Posted by Cam Milne User icon on 7/2/2017, 5:38 pm, in reply to "Re: 67 396 - IAR code ?!"

A '66 engine, of course! I had heard of the 'H' suffix added on the end but never the 'R'.
Thanks for your input all

Re: 67 396 - IAR code ?!

Posted by BigDogSS User icon on 7/3/2017, 10:30 am, in reply to "Re: 67 396 - IAR code ?!"

Yes, in 1966, they added an additional character to differentiate which carburetor was used:
"H" - Holley
"R" - Rochestor

Denis
1967 Impala SS Sport Coupe 396/TH400/12 bolt. Marina Blue (South Gate built)
1967 Impala SS Convertible 327/TH400/12 bolt. Ermine White (St. Louis built)

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