MD Head Gasket

Trying to find an MD (very late 1952) head gasket. I keep running across references to engines with numbers like BD144, BD 154, D264, D281, D236, etc. Can anyone tell me how to tell what cubic inch diesel I have? Thanks, John
 
just measure the cyl. bore. most likely have the 264 which is 4" bore
281 is 4 1/8 bore.
cu. in.displacment = # of cyl's x 0.7854 x bore2 x stroke.
 
Engine designation is cast into the side of the block somewhere.

On an MD you should find "D264."
 
Md's had a d248 block used two head gaskets one for stock pistons and one for factory 4" pistons super mds smtads and 400ds used the d264 block and 450d used d281 block people need correct info clowns just posting stuff on here wasting everyone's time
 
well we told you john, how to tell what cid diesel you have. i dont see where mdnuts is answering your question, other than posting stuff about the diff. bores. to find a 248 is rare.also when going to buy the gasket the parts man would ask what bore it is.
and now back to the show!
a102963.jpg
 
Original engine model would be D-248. Then you need to know if its 3-7/8 bore, or changed from a 3-7/8 inch bore to 4 inch pistons. Then you get into 2 different type sleeves. Need to see how much the sleeves protrude above the deck and shape on top. Not common to still have 3-7/8 pistons and sleeves.
Double check me on this because I never used these new gaskets.
If you have sleeve flanges that raise above the block a good bit. Head gasket 119166A1. For flanges even or just above, gasket 225604A1.
 

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