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looking for a quick way to id an engine
https://slantsix.org/forum/viewtopic.php?t=57631
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Author:  87D100 [ Mon May 04, 2015 8:23 am ]
Post subject:  looking for a quick way to id an engine

I'm in the process of trying to find a rebuildable engine for my D100. The scrap guy that comes to my shop said he has one in a D200 truck, he THINKS its a 68, now i need the large crank register to fit my tranny so if this motor has 5 freeze plugs is that a reliable way to quickly tell if it is a 68 up motor? if not how can i quickly tell?
Thanks
Kevin

Author:  Reed [ Mon May 04, 2015 10:22 am ]
Post subject: 

Five freeze plugs is a good indicator, as is the block casting number. You want a block with casting number 2806830. This is the number for 68-up 225 blocks.

Author:  SlantSixDan [ Mon May 04, 2015 1:05 pm ]
Post subject: 

2806830 is the number for the '68 to mid-'76 block. Starting in mid-'76, with the advent of the cast crank, the block number changed. It changed again several times after that, too.

Author:  wjajr [ Mon May 04, 2015 1:55 pm ]
Post subject: 

Look here for various casting numbers.

Author:  87D100 [ Mon May 04, 2015 6:09 pm ]
Post subject: 

Thanks guys I appreciate the tips :-)

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