Turbo 400 and L88

jbclassics · #1 01-20-2003, 12:45 AM

The information I have looked up shows that 1967 was the first year the L88 427 was put in a Corvette..is this true?
Also was a Turbo 400 available in a 1967 Corvette with a L88 427.

Below are the codes off the tag of a Turbo 400 I currently have in my 1969 Nova 502, a past owner of the transmission claims that it came out of a 1967 Corvette L88...any help would be appreciated.

372

CD67- 35378

**COPO** · #2 01-20-2003, 12:55 AM

I believe 1st time an auto was available behind a solid lifter BB engine was in the 68 Gibb/COPO Novas in 69 it became an RPO for the Chevy line.

**hvychev** · #3 01-20-2003, 01:01 AM

1967 was the first year for the L88 engine as an RPO. 20 units were built with this option that year.

jbclassics · #4 01-20-2003, 01:15 AM

I agree 1967 was the first year for a L88 Corvette, however I always thought they were backed up by 4 speeds....as in COPO's post. I'm not losing sleep over this but it would be interesting if it was one of the twenty or perhaps put in a 1968 [img]/ubbthreads/images/icons/smile.gif[/img]

The best I could ever do with the numbers was...
CD=Chevrolet Division 400 cu in Chevelle or Monte Carlo
67=1967
35378=I assume a vin #
372= Date Code ?????

**Mr70** · #5 01-20-2003, 01:36 AM

I believe 1967 was the first year for the L88 Corvette,but I'm no Corvette expert.According to my books,it was only available with the man.Trans,not a Th400.*Your Trans tag says it was assembled on the 372nd day of 1967,thus 7 days more into the following year.*35378 is the Serial number of the Trans.,not a VIN#. *The Letter code D is a 327 engine application.Only the Larger Passenger Cars got this trans. with a 327 in 67.I.E. Impala.

**TimG** · #6 01-20-2003, 02:40 AM

The turbo 400 would not fit in the transmission tunnel of the 67 Corvette without some modification to the fiberglass. Because of this, all 67 Corvettes were 4-speed or powerglide cars. All L88's for 67 and 68 were 4-speed. In 69 they mated the turbo 400 to the L88.

jbclassics · #7 01-20-2003, 01:04 PM

Thank you for the info I guess I can put that story to rest. It is however a great trans behind the 502 I have
had it upgraded with heavy duty parts a shift kit and a custom 2800 stall converter. The Nova however has the appearance of a COPO car very plain very factory.

**YENKO DEUCE REGISTRY** · #8 01-20-2003, 02:21 PM

'CD' is indeed a TH400 for an Impala with a 327 small block, I happen to have one tucked under workbench - the 327 too, couldn't pass up the pair for $100 at the local junkyard, all I had to do was disconnect it from the car [img]/ubbthreads/images/icons/grin.gif[/img]

JBB · #9 01-21-2003, 12:48 AM

Everyone seems to be on the money with the code of this TH400, I have found it to be applicable to a Camaro or Chevelle not a Impala. But that could be the same code for those three cars. I have a 69 L-78 SS Camaro equipped from the factory with a TH 400 transmission, and this was the first year you could RPO a TH 400 behind a solid lifter big block equipped car. "CX" code wopuld be for a ,L-78,L-89,L-72, and ZL-1 equipped Chevelle or Camaro or Nova. A "CY" TH400 would be the code for a 69 Corvette. These transmissions are VERY rare and hard to find, and they have external differences in the casing as well as some internal heavy duty part applications. Send me an e-mail and I will send you pictures of a CX showing some of the part differences...............Joel

**SS427** · #10 01-21-2003, 02:34 AM

Joel,
CX was also available in the L-72 Impala. It was the guys on this site that confirmed a '69 L-72 convert I came across a year ago with that trans.

I would be very interested in seeing pictures of the differences if you can provide them via e-mail. Please see my profile for the address. THANKS!
Rick

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