3969854 engine block

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**WILMASBOYL78** · #6 03-23-2014, 07:15 PM

I'm sorry...guess I didn't understand your first post correctly. I know there are some #854 blocks that will go to 4.250...we have one. But, I've never seen one .30 over that....Could be somebody got carried away and didn't know what they were doing. [img]<<GRAEMLIN_URL>>/hmmm.gif[/img]

I would suggest double checking the bore size and trying to find a part number on the pistons to confirm the specs...If it truly does have a 4.280 bore...I would have it sonic checked before using it...that thing must have awful thin walls after all that machining.

wilma

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