I'd do cam and valve springs first.

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Posted by Chris Case [172.70.210.153] on Tuesday, December 14, 2021 at 08:30:23 :

In Reply to: Pump Your 230 to 257 CID posted by Vaughn [172.68.133.159] on Monday, December 13, 2021 at 12:14:19 :

Flatties blow headgaskets with standard bores. And #6 rod bearings get starved for oil.

But 35 lb valve springs and negative overlap? Lots of room for raising the horsepower curve there. Make valve train specs similar to /6?

Boring wise, I wonder if you could bore it off center, taking most of the .090 off the non-siamesed walls? It's got those wacky off set rods OE, what's another .040? Hmmm, I wonder if you could get a crank journals ground wider?

And drilled,set screws into crank throiws to restrict oil flow. That looong stroke acts as a centrifugal pump.

Improvements are possible.

under floor

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Re: I'd do cam and valve springs first. - Vaughn 10:19:08 12/14/2021

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