Have 638632 block with 800378 head

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   I purchased a 46 2A this past spring and it came with a bunch of parts including a MB block 638632 with M 38 head 800378.  My question is this valuable to anyone restoring a MB?  The motor turns and looks like it has been cared for (meaning it has been stored correctly).  Thanks in advance and apologize if this is an ignorant question.

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Billy46CJ2A Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 23 Nov. 2019 Location: Maine Status: Offline Points: 14	Post Options Post Reply Quote Billy46CJ2A Report Post Thanks(0) Quote Reply Topic: Have 638632 block with 800378 head Posted: 05 Dec. 2019 at 11:07pm
	I purchased a 46 2A this past spring and it came with a bunch of parts including a MB block 638632 with M 38 head 800378. My question is this valuable to anyone restoring a MB? The motor turns and looks like it has been cared for (meaning it has been stored correctly). Thanks in advance and apologize if this is an ignorant question.
	Bill

athawk11 Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4151	Post Options Post Reply Quote athawk11 Report Post Thanks(0) Quote Reply Posted: 06 Dec. 2019 at 2:11am
	638632 casted engine blocks were also used in the CJ2A until early 1947. Is there any other indication that it's an actual MB block? Does it have an MB serial number? If so, the block may have value if it can be proven sound. It would have even more value if it has the original size cylinder bore...or close to original. The head has some value if in good condition, but probably not as much value to a guy looking for a matching MB head. Edited by athawk11 - 06 Dec. 2019 at 2:13am
	1- 1946 CJ2A 2- 1949 CJ3A

19Cargo42 Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 23 Apr. 2018 Location: Western Mass. Status: Offline Points: 570	Post Options Post Reply Quote 19Cargo42 Report Post Thanks(0) Quote Reply Posted: 06 Dec. 2019 at 2:31am
	Could you share the casting date on the block as well as the assembly date stamped into the face that the oil pan mates to? My 1945 CJ2A #11662 engine has a January 15 casting date, and I’m pretty sure the block is original to the vehicle based on the serial number stamped on the boss behind the oil filter. I also suspect the block is cracked, so I might be looking for an MB block from January or August of 1945 if my original block can’t be repaired. Thanks, John

Billy46CJ2A Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 23 Nov. 2019 Location: Maine Status: Offline Points: 14	Post Options Post Reply Quote Billy46CJ2A Report Post Thanks(0) Quote Reply Posted: 06 Dec. 2019 at 11:55am
	Thanks, I will do a little more investigating.
	Bill

Billy46CJ2A Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 23 Nov. 2019 Location: Maine Status: Offline Points: 14	Post Options Post Reply Quote Billy46CJ2A Report Post Thanks(0) Quote Reply Posted: 06 Dec. 2019 at 11:57am
	Thanks John. I will do some additional cleaning to find those numbers.
	Bill

19Cargo42 Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 23 Apr. 2018 Location: Western Mass. Status: Offline Points: 570	Post Options Post Reply Quote 19Cargo42 Report Post Thanks(0) Quote Reply Posted: 06 Dec. 2019 at 12:28pm
	Great, thank you. I'll look forward to learning more. John

mbullism Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member x 4 Joined: 29 May 2015 Location: MA Status: Offline Points: 4769	Post Options Post Reply Quote mbullism Report Post Thanks(0) Quote Reply Posted: 06 Dec. 2019 at 12:36pm
	Pretty sure that casting head had 3A applications as well. Is the boss on the front edge drivers side drilled and tapped for a waterpump bypass hose?
	Those who do not learn from history are doomed to repeat it... Welcome to 1930's Germany