Engine block ID decoders, please help..
Thread Starter
Racer
Joined: Aug 2007
Posts: 335
Likes: 14
From: Fort Wayne Indiana
Engine block ID decoders, please help..
Howdy all, happy Vets Day!
Finally getting around to the engine ID in my 72. Its a non-matching numbers car that im starting a body on restoration. I pulled the numbers off the block and wanted to see if anyone can help identify the history of this motor.
I have no clue what im looking at when it comes to block ID codes. The only thing i know is it doesnt match my car.
Any help would be appreciated for my history/progress of the restoration.
As it appears on the Block:
16D4 86 805
KO3 06 CMJ
i assume its a 350 and its painted orange so im confident its a GM motor. What else can anyone tell me about this block?
Thanks!
Finally getting around to the engine ID in my 72. Its a non-matching numbers car that im starting a body on restoration. I pulled the numbers off the block and wanted to see if anyone can help identify the history of this motor.
I have no clue what im looking at when it comes to block ID codes. The only thing i know is it doesnt match my car.
Any help would be appreciated for my history/progress of the restoration.
As it appears on the Block:
16D4 86 805
KO3 06 CMJ
i assume its a 350 and its painted orange so im confident its a GM motor. What else can anyone tell me about this block?
Thanks!
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
KO3 06 CMJ
K= cast and assembled at the McKinnon Industries, St. Catherines Ontario
0306= assembled on march 06. Year is not specified
CMJ 1974 350 t4OO police - 4bbl full size
or
CMJ 1980 305 automatic trans. H - - full size/Camaro
What's the casting number and date?
K= cast and assembled at the McKinnon Industries, St. Catherines Ontario
0306= assembled on march 06. Year is not specified
CMJ 1974 350 t4OO police - 4bbl full size
or
CMJ 1980 305 automatic trans. H - - full size/Camaro
What's the casting number and date?
Thread Starter
Racer
Joined: Aug 2007
Posts: 335
Likes: 14
From: Fort Wayne Indiana
how or where do I find the casting number/date? Sorry, I am dumb when it comes to all facets of motors. So it's either a 74 350 from a full size truck...or a 305 from an 80 camaro? Wow, big difference in genetics there.
Burning Brakes
Joined: Apr 2008
Posts: 945
Likes: 1
According to the NCRS Black Book:
Casting number is on the upper rear of the driver's side of the block near the flywheel attachment.
Casting date is at the rear passenger side of the block. It is a three or four characters, an alpha followed by two or three numeric. The alpha is the month. B129 would be Feb 12, 1959, 1969, 79, 89.
Casting number is on the upper rear of the driver's side of the block near the flywheel attachment.
Casting date is at the rear passenger side of the block. It is a three or four characters, an alpha followed by two or three numeric. The alpha is the month. B129 would be Feb 12, 1959, 1969, 79, 89.
Thread Starter
Racer
Joined: Aug 2007
Posts: 335
Likes: 14
From: Fort Wayne Indiana
well I. Will get a peak of those numbers tomorrow. As it's not the original motor, is it fairly easy to get new manifolds/headers and exhaust? The setup on the car now is far past prime. I'm used to ordering out of a catalog for the 02 as I know exactly what to get. Not being a corvette motors makes it difficult to order from mid America or some place similar
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
You asked what car the motor originally came from. Withe casting date and number , someone can narrow it down to being a cop car engine or a Camaro 305
Since it has parted company with that vehicle, it may have been completely rebuilt and modified into who-knows-what configuration.
Someone may have transferred the majority of the original Corvette engine parts into the new motor or it could be some customised setup.
You're right that you can't just point and click at catalogues to find parts for it- lots of research will need to be done.
Since it has parted company with that vehicle, it may have been completely rebuilt and modified into who-knows-what configuration.
Someone may have transferred the majority of the original Corvette engine parts into the new motor or it could be some customised setup.
You're right that you can't just point and click at catalogues to find parts for it- lots of research will need to be done.
Thread Starter
Racer
Joined: Aug 2007
Posts: 335
Likes: 14
From: Fort Wayne Indiana
Alright, finally got under the car to look for some numbers...the casting number i believe (from the drivers side by the firewall) is:
3970010 K 2
That is how it looks on the block. The last two numbers i believe are supposed to be at least part of the casting date. I scoured the rest of the block and could not find any further numbers. I hope this is enough data to help determine the motor; a 350 or or a 305? What can you all tell me? Thanks
3970010 K 2
That is how it looks on the block. The last two numbers i believe are supposed to be at least part of the casting date. I scoured the rest of the block and could not find any further numbers. I hope this is enough data to help determine the motor; a 350 or or a 305? What can you all tell me? Thanks
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Thread Starter
Racer
Joined: Aug 2007
Posts: 335
Likes: 14
From: Fort Wayne Indiana
what year is your car derby? I have the numbers on my front pad and all I know is it doesn't match my VIN.
I just want to know the motor details so I can get the correct exhaust setup.
Fingers are crossed for a 350 but I want to know the history too.
I just want to know the motor details so I can get the correct exhaust setup.
Fingers are crossed for a 350 but I want to know the history too.
Racer
Joined: Sep 2007
Posts: 383
Likes: 0
From: Roseville CA
St. Jude Donor '09
I have a 350 auto.
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
Alright, finally got under the car to look for some numbers...the casting number i believe (from the drivers side by the firewall) is:
3970010 K 2
That is how it looks on the block. The last two numbers i believe are supposed to be at least part of the casting date. I scoured the rest of the block and could not find any further numbers.
3970010 K 2
That is how it looks on the block. The last two numbers i believe are supposed to be at least part of the casting date. I scoured the rest of the block and could not find any further numbers.
The 0010 block was not used in a 307 cu in config, so it`s probable that you have a 350.
I note that you are trying to get the correct exhaust system, which is confusing as it has nothing to do with casting numbers, dates, engine codes etc etc. of a replacement engine.
If you`re pointing and clicking in a catalogue, and NCRS correctness is out of the question, you would want to simply choose a system that the car would have come with.
Last edited by Mike Ward; Nov 16, 2008 at 06:04 PM.
Thread Starter
Racer
Joined: Aug 2007
Posts: 335
Likes: 14
From: Fort Wayne Indiana
thanks for the info; point of fact, I only wanted to confirm it was a 350 block, therefore the search on block dates. Now that I can be sure it's a 350 I can shop for headers or exhaust manifolds if need be. Correct, block data has no concern with exhausts; I'm just curious as to the history of my motor. This is my first non matching numbers car. Thank you again for the all the help! Another example of this forums potential.
1st Gear
Joined: Jan 2009
Posts: 1
Likes: 0
I have same motor casting and symbols
If you are still looking.?
As far as I found out this block was made in St Catherines at the McKinnon Foundry and on early 70's castings they moved the suffix or vin number to the lower part of the block on the oil filter housing, the part that sticks out that is at a 90 degree for the block. It is written in there. I would take care trying to clean to get the numbers as I looked for mine and I think they are imprinted not cast in there. I still have to clean mine better to get them, maybe some brake cleaner and scuff pad?
As far as I found out this block was made in St Catherines at the McKinnon Foundry and on early 70's castings they moved the suffix or vin number to the lower part of the block on the oil filter housing, the part that sticks out that is at a 90 degree for the block. It is written in there. I would take care trying to clean to get the numbers as I looked for mine and I think they are imprinted not cast in there. I still have to clean mine better to get them, maybe some brake cleaner and scuff pad?
Melting Slicks
Joined: Feb 2001
Posts: 3,330
Likes: 13
From: Europe , Luxembourg
Hi
but the pad on the right front is blank. Does that mean I have a replacement motor?
Could also be decked. This is visible on the broach marks.
If those are kind of curved , slightly arced, it is decked.
Originals are straight lines longitudinal to the block.
Rgds. Gunther
but the pad on the right front is blank. Does that mean I have a replacement motor?
Could also be decked. This is visible on the broach marks.
If those are kind of curved , slightly arced, it is decked.
Originals are straight lines longitudinal to the block.
Rgds. Gunther
