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Old 06-28-2023, 07:51 PM
musclecar fan musclecar fan is offline
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Default Block ID Help Needed

Block cast is 3969854

Stamp: T02191KB

Can't figure out the extra "1" before the KB. Perhaps it's TKB, IKB, 1KB? Trying to ID this motor.

I thought the following:

T - Tonowanda
02 - Feb
19 - 19th day
1 - ?????
KB (69 396/350 w/ manual trans)
but TKB is 1972 Truck 402

Looking for date code casting as well.

Any insight appreciated.

It does have painted valve covers, not chrome.
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  #2  
Old 06-28-2023, 08:51 PM
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John Brown John Brown is offline
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KB is a 69 396 350 horsepower 4B carb Manual Transmission Chevelle or El Camino.

ncrs.org/LIME BOOK pdf
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Old 06-28-2023, 09:11 PM
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That stamp is TKB…….which is out of a 1972 402 out of a truck with an automatic.

Kurt
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Old 06-28-2023, 09:13 PM
musclecar fan musclecar fan is offline
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Except this stamp has 8 characters instead of the usual 7. That's what is throwing me off. The 1 or T or I before the KB is an extra character. Is this a 69 396/350 or something else. If it was 7 characters without the 1/T/I character I'd agree. But not sure what the extra character means as to ID of this engine.
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Old 06-28-2023, 09:14 PM
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What is the casting date on the block?
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Old 06-28-2023, 09:16 PM
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Late 1969 early 1970….they changed the suffix code from two letters to three. The first letter was a C for car or T for truck…..that’s why yours has three letter for the suffix code.
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Old 06-29-2023, 12:04 AM
Big Block Bill Big Block Bill is offline
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Default Block Id Help Needed

X-2, Just like Kurt said, C for Car & T for Truck when they went from (2) letter engine codes to (3) letter engine codes. I would guess the cate date is February 19 1972 You have a 1972 402 with an TH-400 Truck Engine. Bill

Last edited by Big Block Bill; 06-29-2023 at 12:10 AM.
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