KPoole9008
New Member
I have a GM crate engine with the numbers 1M09020H04 stamped on it. Does anyone know what it came out of? I know it's a 350 4 bolt main. Thanks
Number on the engine
- Thread starter KPoole9008
- Start date
I also have a GM crate motor.
Did you get them numbers from the rear of the motor or the front?
The info on mine was not easy to find.
I found it with the numbers from the rear driver side, where the trans mounts to the block. I think it started with 140 or GM then the numbers
But is was a 350 4 bolt main, Stock, Made in Mexico. 1980 -1990
oh ya Casting number.
Did you get them numbers from the rear of the motor or the front?
The info on mine was not easy to find.
I found it with the numbers from the rear driver side, where the trans mounts to the block. I think it started with 140 or GM then the numbers
But is was a 350 4 bolt main, Stock, Made in Mexico. 1980 -1990
oh ya Casting number.
KPoole9008
New Member
tt
KPoole9008
New Member
The numbers I have posted are on the front right [passenger] side of the block.
Telman2
Active Member
This is the best site I've found for casting numbers, the opening page shows you where to look for them.
http://www.mortec.com/location.htm
scroll down to the bottom of the page for more information.
http://www.mortec.com/location.htm
scroll down to the bottom of the page for more information.
"I have a GM crate engine with the numbers 1M09020H04 stamped on it. Does anyone know what it came out of? I know it's a 350 4 bolt main. Thanks "
If it's a GM crate engine it should have come out of GM's Parts Division.
Did you buy it from GM, an authorized GM Crate Engine Supplier like Summit Racing or some obscure parts-gatherer like Bob & Wallys?
Crate engines used to mean a motor built by the manufacturer (GM, Ford, Chrysler) from a selection of new parts, all with standard tolerances.
Crate engines these days can mean anything thrown together, painted and shipped on a pallet.
Unless the motor came from GM's parts division, I'd pull the pan, a rod and main cap and see what size crank is.
When you ask; what it came out of, I think you mean, what's its application. The answer is a question. What did you order?
If it's a GM crate engine it should have come out of GM's Parts Division.
Did you buy it from GM, an authorized GM Crate Engine Supplier like Summit Racing or some obscure parts-gatherer like Bob & Wallys?
Crate engines used to mean a motor built by the manufacturer (GM, Ford, Chrysler) from a selection of new parts, all with standard tolerances.
Crate engines these days can mean anything thrown together, painted and shipped on a pallet.
Unless the motor came from GM's parts division, I'd pull the pan, a rod and main cap and see what size crank is.
When you ask; what it came out of, I think you mean, what's its application. The answer is a question. What did you order?
Well, as to what it came out of, the only sure answer is -- are you ready? A crate!
Seriously, you'll probably need to check with a GM Performance Parts dealer. They can probably link the ID number to the specifications for that engine.Bob
Well, as to what it came out of, the only sure answer is -- are you ready? A crate!
Bob
LOL!!
Telman2
Active Member
The block casting number on smallblock and big block Chevy V-8 motors is located on a ledge found at the rear of the block, most often on the driver's side. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. Some of the later model blocks have the casting number on the passenger side of this ledge. The number itself can have 6, 7 or 8 numeral digits. They might look like this "361959" or "3970010" or "14015445". The block casting numbers do not have any letters in them. There are sometimes individual letters found on blocks like "GM" or "CFD" for the Central Foundry Division, but they are not part of the block casting number. Also some of the later blocks have the size of the motor shown in liters. You may see a "5.0" (305) or "5.7" (350) cast on the rear ledge of a smallblock or a "7.4" on the side of a big block 454. On the side of some later blocks the last three digits of the block casting number are cast into the block, but these are difficult to see when the engine is in a vehicle.
Mike
Well-Known Member
And a casting number like 3970010 isn't really telling you anything in particular, other than the fact the block is a large journal, 4.000" bore block.
Of course if you have one, you can always sell it as 'an extremely rare '68 or '69 327 block'. No, really, they only made them for just the two years... :thumb:
Of course if you have one, you can always sell it as 'an extremely rare '68 or '69 327 block'.
No, really, they only made them for just the two years... :thumb:
And a casting number like 3970010 isn't really telling you anything in particular, other than the fact the block is a large journal, 4.000" bore block.
Of course if you have one, you can always sell it as 'an extremely rare '68 or '69 327 block'.
In most cases the 0010 block will be 4 bolt main but not always. If you are looking at one to buy, pull the pan and be sure.
Chief-T
Member
And a casting number like 3970010 isn't really telling you anything in particular, other than the fact the block is a large journal, 4.000" bore block.
Of course if you have one, you can always sell it as 'an extremely rare '68 or '69 327 block'.
My block is a 3970010 casting and it came out of a 1978 truck.
Don't put too much faith in casting numbers as an identifier. Casting numbers can be useful to identify castings, but those castings can be used to build a variety of engines with different specifications and states of tune. That's true of crate engines as well as engines from production vehicles. The engine identification number stamped on the number pad is the only way to identify an engine with regard to it's complete specifications.
Bob
Bob
Similar threads
