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241 max bore?

Back in the mid 60's my Dad took a '53 241 Red Ram(3.4375 bore) and bored it .125(1/8 inch) to 3.5625 and installed '55 Plymouth 259 pistons. It worked fine and had no valve clearance problems. I still have the engine and am wondering if it can be bored another .060 so it can take 270 pistons. Does anyone have experience on boring a 241 to a 270? Are the water jacket cores the exact same or does the 270 have a different core which yields a thicker cylinder wall? Thanks.
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on: Fri 28 of Feb, 2020 [03:17 UTC] reads: 1889

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Re: 241 max bore?
on: Fri 28 of Feb, 2020 [11:08 UTC] score: 0.00
.125 is considered max.

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