Re: GM Bowtie block "184" max bore?
Posted: Sat Jan 13, 2018 5:50 pm
Call Marvin Shaw. The WOP shop can do it.
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Buy your own ultrasonic tester. They are inexpensive these days and they workDragsinger wrote: ↑Fri Jan 12, 2018 12:15 pm We have no reasonable access to that test. I hope to hear from some builder who has experience with that specific block casting.
You are correct, but, it works. I had 1 Dart Iron Eagle block at 4.250 for years. It never lost a head gasket. And it wasn't a mild deal. Bill Mitchell did in fact sell a 454 that was 4 inch stroke. And 4.250 bore. Its kind of dumb to take a brand new block to the limit though.swampbuggy wrote: ↑Sat Jan 13, 2018 6:32 am PDQ67------ a 4.250" bore in a 4.400" bore center block would only leave .150" between the bores, are you not thinking of the fairly new 4.500" bore center block??? Dart machinery offers this block in iron (and) aluminum. The MAX. recommended bore diameter for this block is 4.250", and that would leave .250" between bores. A 4.400" bore center block (original S.B.C. design) at 4.185" leaves one with only .215" between bores. Mark H.