I need help identifying my engine casting/year
10-01-2005, 12:33 AM
#1
Burning Brakes
Thread Starter
I need help identifying my engine casting/year
I was doing my new Vigilante install today, and saw these numbers behind the flex plate. Here they are...
H13
638
627
Any ideas? These numbers are on block right behind the flex plate. There is reason to doubt that the wrong motor was installed into my 86 when the previous owner owned it, and these are the only numbers I could find. I hope you guys have some ideas. Thanks!
H13
638
627
Any ideas? These numbers are on block right behind the flex plate. There is reason to doubt that the wrong motor was installed into my 86 when the previous owner owned it, and these are the only numbers I could find. I hope you guys have some ideas. Thanks!
10-01-2005, 01:04 AM
#2
Race Director
Check this link out.These are for remanufactured engines.The number 638 shows up a few times.Scroll down and see what they used it for.Hope this helps some.
http://remanufactured.com/Chevrolet_...V8_Engines.htm
http://remanufactured.com/Chevrolet_...V8_Engines.htm
10-01-2005, 11:50 AM
#3
Burning Brakes
Thread Starter
Originally Posted by Bill's86Coupe
Check this link out.These are for remanufactured engines.The number 638 shows up a few times.Scroll down and see what they used it for.Hope this helps some.
http://remanufactured.com/Chevrolet_...V8_Engines.htm
http://remanufactured.com/Chevrolet_...V8_Engines.htm
Last edited by darkman5001; 10-01-2005 at 02:22 PM.
10-02-2005, 12:21 AM
#5
Instructor
Member Since: Jun 2004
Location: 1987- L98, auto OH
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You might take a look at www.mortec.com. They have block casting numbers that might help. The numbers you posted are too short to be true block casting numbers. On mortec's site there are links to show where the actual casting numbers are. In most cases it's on the driver's side rear of the block, right behind the head. You might check out their location information on their site and check your engine and then their listings of casting numbers to see if it helps. I would check my book of block casting numbers, but I left it at work! Good luck!
Brad
Brad
10-03-2005, 08:24 PM
#6
Burning Brakes
Thread Starter
Originally Posted by 1987C4
In most cases it's on the driver's side rear of the block, right behind the head.
I would check my book of block casting numbers, but I left it at work! Good luck!
Brad
Brad
10-03-2005, 08:55 PM
#7
Race Director
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Originally Posted by darkman5001
Thats where I found this number.
RACE ON!!!
PS. Just in case you have some kind of an odd ball there, and it only has 6 digits, and even if it doesn't start with a 3, it may still be valid. Forget what you saw, "stamped on the rear", and only supply cast numbers. Stampng numbers are stamped. In order to look up casting numbers, you need numbers that were...
Last edited by CFI-EFI; 10-03-2005 at 09:05 PM.
10-04-2005, 05:04 PM
#9
Burning Brakes
Thread Starter
Originally Posted by CFI-EFI
That ISN'T where you "found this number", If you read it "looking through the flexplate.". The number he is referring to, is "on the driver's side rear of the block, right behind the head." It is on a horizontal surface facing up and to the left. It is just behind the head and can be read with the bell housing and transmission bolted to the block. It will be a 7 digit number, starting with a "3".
RACE ON!!!
PS. Just in case you have some kind of an odd ball there, and it only has 6 digits, and even if it doesn't start with a 3, it may still be valid. Forget what you saw, "stamped on the rear", and only supply cast numbers. Stampng numbers are stamped. In order to look up casting numbers, you need numbers that were...
RACE ON!!!
PS. Just in case you have some kind of an odd ball there, and it only has 6 digits, and even if it doesn't start with a 3, it may still be valid. Forget what you saw, "stamped on the rear", and only supply cast numbers. Stampng numbers are stamped. In order to look up casting numbers, you need numbers that were...
H13
638
I have yet to findd any other numbers on the block, except I think I found a 3 digit number stamped to block on the passenger side in front of starter. There is also a sticker on the block saying that it is a Jarco remanufactuedengine, but that's all I can find. It would be alot easier if someone could take a pic of where it is on the small blocks, and post it or email it to me. Thanks!
10-04-2005, 08:38 PM
#10
Le Mans Master
Member Since: Aug 2000
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There has to be a cast number where CFI-EFI said unless someone has ground it off.
All blocks come with come sort of identification from the foundry.This # is only a guide as the one casting may be used in several applications.
For instance the sort after "010" block was used for Hp and trucks , 2 +4 bolt.
Any other # you can see are generally foundary production codes, date , etc.
The block casting # is the only one of any relevence when trying to identify a block unless the factory production code # are still visible stamped on the machined pad at the front of the block (horizontal) under the A/c unit.That 3 lettert code will tell year , Hp ,original vehicle.
"The thing is that I think the engine installer installed a 4 bolt main roller motor into it. This leads me to believe it may even have wrong cam possibly. That site does have many 638 blocks, but I saw roller and non-roller blocks with 638."
Is the crankshaft flange where the flexplate bolts to round or is it squared off?
If not perfectly round is not late model ,1 piece seal , roller cam block.
All blocks come with come sort of identification from the foundry.This # is only a guide as the one casting may be used in several applications.
For instance the sort after "010" block was used for Hp and trucks , 2 +4 bolt.
Any other # you can see are generally foundary production codes, date , etc.
The block casting # is the only one of any relevence when trying to identify a block unless the factory production code # are still visible stamped on the machined pad at the front of the block (horizontal) under the A/c unit.That 3 lettert code will tell year , Hp ,original vehicle.
"The thing is that I think the engine installer installed a 4 bolt main roller motor into it. This leads me to believe it may even have wrong cam possibly. That site does have many 638 blocks, but I saw roller and non-roller blocks with 638."
Is the crankshaft flange where the flexplate bolts to round or is it squared off?
If not perfectly round is not late model ,1 piece seal , roller cam block.
Last edited by rodj; 10-04-2005 at 08:44 PM.
