3959512 block- safe overbore? and stroke?
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St. Jude Donor '12
3959512 block- safe overbore? and stroke?
I've looked back through the past threads about this particular block, but really didn't get the answer I was looking for. I have one of these blocks in the 2 bolt small journal configuration. I was wondering if the cylinder walls are any thicker than an 870 block, as it is already bored .040, and there is one cylinder with water rusting that I am not positive would clear at .060. Also, I understand that the large journal version of this block makes for a really nice street sleeper with a 3.75 400 crank, but dont know if there is sufficient clearance in the small journal version to clear the stroke or not. any one with experience with this set up? thks
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Take it to a machine shop and have it sonic tested. Anything else is just a guess