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Joined: May 2013
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I have a 216 engine (don't know what its from) that has some unusual marking on the side of the block. Casted on the side is the number 48 in the center of a circle. The casting is lifted and is about he size of a half dollar? Has anyone seen one of these before and if so what is it?

I own several pre-war 216's but the "48" marking is very unique and interesting.

Last edited by heavy40chevy; 07/08/2013 4:56 PM.
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Both 1948 and 1949 has the raised 48 in a 2" circle.
You would need to look at the casting date behind the starter to see exactly the month, day, and year.


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Any major improvements/differences in this engine from earlier models?

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There were a few starting in 48.
Rods got narrower and used thinner Babbitt.
Mains went to precision inserts.
Block water drain went from 1/8" to 1/4" pipe thread.
There are more but that is off the top of my head.



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any chance it could be a 235?

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You would need to check the code stamped next to the distributor or measure the height of the block. 235's are 1/8" taller than 216's.


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Dave, Would that 1/8 inch difference between 235 and 216 be from the "Pan ledge to top of block ?
Do you know by chance what the 216 measurement is or the 235 measurement is?



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216 is 10 3/4" from pan ledge to deck of block.
235 is 10 7/8".


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