I think I posted that same info to your question earlier.
Yes, 67GTO4SPEED, the All Pontiac splayed caps, beefier construction, thicker walls would all contribute to a stronger block vs a stock Pontiac block BUT THE MAN WANTED TO GO WITH A BOOSTED ENGINE.
If you for example wanted a much stronger naturally aspirated block you would be fine with the ones being sold, on the special deal.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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