It's a beauty!
I'm on the first step of a long journey getting a stroker motor built for my 70 Roadrunner. I'm going with the "new generation" circa 12/2019 Bill Mitchell aluminum RB block, and the Tampa dealer who is providing it has DEEP Mopar racing specific personnel and experience, so I'm going to let them do the build.
Approximately 120 days out for the block, and the progress of the build is dependent on how much money I can put aside from time to time.
I figured it would be difficult to find someone who I could trust to test enough block cores to find the one with sufficient wall thickness and other parameters to bore, and the BME block is good for a 4.50 stroke without clearancing, although I'm going with a 4.25 stroke and 4.5 bore (cylinder liners come 4.49) for a "540"
The other factors are having abundant headroom for power capacity versus being close to the upper limit of a factory block, and shaving over 100# off the front of my car. Not bad looking either for "show and shine" which I do a lot of:
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