engine id

joeydeherrera54 · 01-27-2008, 11:50 AM

ok my brother has a 79 chevy and he is trying to find out what motor it is here are the numbers on the front of the block i checked the website and couldnt find it any help v0722txb c7f502893 the numbers on the back are 3790010 and also these numbers on a different motor v0402ckx and 16s430421

stuvw2mny · 01-29-2008, 10:41 PM

Here's a little information: which to believe I can't tell you because there is conflicting information in different listings.

The stamped, I stress stamped, number on the front of the engine is the engine id number. The first letter tells you the manufacturing plant, the following numbers give the month and day of manufacture, and the final 3 letters are the engine suffix code.

Two sources gave information helpful to your numbers - The LMC Truck Catalog and 73-87.com. The TXB suffix shows up in both as a 1975 350ci V8 engine used on C20 to 3500. The CKX suffix shows up as 72 or 73 vette or 76 camaro 350ci V8 in the 73-87.com listing and did not show up in my 1973-87 LMC Truck Catalog. You did not say what engine you have 6 cyl or V8 engine, which would have been helpful.

I presume the 3790010 number you stated is on the rear of the block and is a raised number. If so it is likely a block casting number. I did not find that number in 73-87.com or in jimsperformance.com/blocks.html but the latter lists a 3970010 casting as being a 1967 thru 1979 350ci V8. There was also one listing of that 3970010 casting being a 327 engine. You might try a search on chevy block casting numbers.

Then you will have to deal with whether the engine is original or rebuilt or modified. Such fun!

01-27-2008, 11:50 AM	#1
joeydeherrera54 Senior Member Join Date: Jan 2007 Location: grand junction colorado Posts: 73	engine id ok my brother has a 79 chevy and he is trying to find out what motor it is here are the numbers on the front of the block i checked the website and couldnt find it any help v0722txb c7f502893 the numbers on the back are 3790010 and also these numbers on a different motor v0402ckx and 16s430421 Last edited by joeydeherrera54; 01-27-2008 at 06:24 PM.

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01-29-2008, 10:41 PM	#2
stuvw2mny Full Member Join Date: Oct 2007 Posts: 12	Here's a little information: which to believe I can't tell you because there is conflicting information in different listings. The stamped, I stress stamped, number on the front of the engine is the engine id number. The first letter tells you the manufacturing plant, the following numbers give the month and day of manufacture, and the final 3 letters are the engine suffix code. Two sources gave information helpful to your numbers - The LMC Truck Catalog and 73-87.com. The TXB suffix shows up in both as a 1975 350ci V8 engine used on C20 to 3500. The CKX suffix shows up as 72 or 73 vette or 76 camaro 350ci V8 in the 73-87.com listing and did not show up in my 1973-87 LMC Truck Catalog. You did not say what engine you have 6 cyl or V8 engine, which would have been helpful. I presume the 3790010 number you stated is on the rear of the block and is a raised number. If so it is likely a block casting number. I did not find that number in 73-87.com or in jimsperformance.com/blocks.html but the latter lists a 3970010 casting as being a 1967 thru 1979 350ci V8. There was also one listing of that 3970010 casting being a 327 engine. You might try a search on chevy block casting numbers. Then you will have to deal with whether the engine is original or rebuilt or modified. Such fun!