block vin decode - Impala Tech
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post #1 of 9 (permalink) Old 02-03-2006, 06:10 AM Thread Starter
 
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block vin decode

My 396 IV block's vin stamp is 7r127238, the R is a plant code? and what cars were coming out of there in 67 model year, I know the IV's were for full size cars but can it be narowed down to a particular model? thanks for any help.
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post #2 of 9 (permalink) Old 02-03-2006, 04:29 PM
 
 
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The numbers on the VIN plate, that is located below the lower door hinge on the left or drivers side, will tell you more of what your looking for. The numbers you list don’t jibe with a correct VIN plate. For 67 there should be 13 digits. If you forward the numbers from this plate I’ll break it down for you. If your looking to decode your suffix code ending with IV the numbers you listed also don’t jibe as those should start with a “T” for Tonawanda engine plant (all 396ci.were made there) IV suffix codes were stamped on 396ci engines used in full size models like Impala, with a three speed automatic transmission, starting in the mid year 1965 (replacing the 409ci). And used in 66,67,and 1968 model years.
Jim
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post #3 of 9 (permalink) Old 02-10-2006, 06:14 PM
 
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I believe the R in your VIN derivative is Arlington, Tx plant.
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post #4 of 9 (permalink) Old 03-04-2006, 01:07 PM
 
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I am the owner of a 66 Chevy Caprice Coupe, the fender flags say 396, but I think the motor has been replaced with an after market block. The problem is, the previous owner, did'nt really know what he had. He said it was a 454, punched out to 468, but he did'nt seem to have much knowledge about working on it. He tried to start the car with out the gas line hooked up, and the starter s-cable disconnected. That helped me knock off $1,500.00 from his asking price, but now the cam is going flat. So I am trying to find out exactly what I have as far as cubic inch displacement, and horsepower rating. The block is stamped above the timing cover with 'T0927AKX', can you tell me what I have, or do you need more numbers?
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post #5 of 9 (permalink) Old 03-07-2006, 11:43 AM
 
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Quote:
Originally Posted by Ricks66Caprice
...The block is stamped above the timing cover with 'T0927AKX', can you tell me what I have, or do you need more numbers?
T = Tonawanda, NY engine final assembly
09 = September
27 = 27th day
AKX = 1987 454/7.4L Conventional Cab Truck C20,30/25,35 (3/4 & 1ton-2Wheel Drive) VIN engine code = N.
note: there is also an unconfirmed Tall Deck 427 'AKX' truck motor from the late 70's - but, you noted the stamp is on the newer location above the timing cover which should indicate 87 (late 86) date as more likely. Looking for a partial VIN on pad or "7.4" cast into the side of block, as well as casting number for block would pin it down more.
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post #6 of 9 (permalink) Old 03-07-2006, 05:32 PM
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Cool

Going back to L-37's number I believe it came from a Camaro (there is no direct correlation to the number 27 but all 20's are Camaro, 30's are Chevelle, teens are Chevy II, with 60's being the big B-bodies, etc.) though I am speculating. Appears to have been built in '68 at the Arlington TX plant.


Big Dave
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post #7 of 9 (permalink) Old 03-07-2006, 05:40 PM
 
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Thanks so much, you were the only person to answer that question for me, and I truly appreciate you help. I am a life long member now, even if it is just a Caprice Coupe........Thanks again.
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post #8 of 9 (permalink) Old 03-08-2006, 12:47 PM
 
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Quote:
Originally Posted by Big Dave
...I believe it came from a Camaro (there is no direct correlation to the number 27 but all 20's are Camaro, 30's are Chevelle, teens are Chevy II, with 60's being the big B-bodies, etc.) though I am speculating.
Appears to have been built in '68 at the Arlington TX plant.


Big Dave
The number "7R127238" in 67 L-35's first post is the Partial VIN derivitive stamped on the front pad along with an engine assembly date code or suffix mark. This should not be confused with the body codes, like the 12437/67 for Camaros, and other numbers you are refering to.
As Jonesy has stated, it was from the Arlington, Tx. Final Assembly Plant.
Arlington, Tx only assembled Full Size Passenger vehicles that year, so safe bet it's from a full size.
The Partial VIN decodes as:
7 = 1967, model year - engine/car could have been assembled in 1966, suffix would give engine date.
R = Arlington, Tx final assembly plant
127238 = VIN sequence number from GM - started at 100001 for full size in Sept. 1966 for the 1967 model year. So this was the 27,238th unit built for that sequence that model year.

Rick66;
You're welcome
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post #9 of 9 (permalink) Old 03-08-2006, 08:10 PM
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67 L35, Could you send me the casting number and date and the stamped number T_ _ _ _ IV for my database.
Thanks, Warren
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