Wanted: 170 CID Slant Six and parts for stroker build

JohnFM3 said

Trying to find a 170 block is hard enough. Finding one that has all 6 bores in the correct location to safely support .100 over, is near impossible.

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A good machine shop can sleeve it to accomodate that bore size.....and probably more. Of course, depending on your budget, it might be cost prohibitive, but certainly nowhere near "near impossible".