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06-06-2023, 08:16 AM | #1 |
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Location: albany
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Small bore 59a ?
Can a 3.062 bore 59a be safely taken out to 3.248 for a 265 build? Inclined to think yes provided the block castings are all the
Same |
06-06-2023, 08:49 AM | #2 |
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Location: Chester Vt
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Re: Small bore 59a ?
Absolutely, took several to 3.312. Not sure why Ford did this, but to be safe, have it sonic tested.
Gramps |
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06-06-2023, 08:59 AM | #3 |
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Re: Small bore 59a ?
Thnx. Lotsa meat in the wall when did the 2 finger thickness check
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06-06-2023, 09:00 AM | #4 |
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Join Date: Sep 2021
Location: summerton, sc
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Re: Small bore 59a ?
I just had a 40 block bored to 3 3/16 (3.1875) std, with my merc crank gives me 255 cu in, did not want to chance going more with that block. I think your block could go more than the older block.
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06-06-2023, 12:29 PM | #5 |
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Re: Small bore 59a ?
Your definitely safe going to 3-3/16 done it many times myself exactly like Kurt wrote above. Adding a Merc crank and your at 255 cubes. Only ten less cubes than the 265 idea.
Ronnieroadster
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I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
06-06-2023, 02:34 PM | #6 |
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Re: Small bore 59a ?
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kurt |
06-06-2023, 03:58 PM | #7 | |
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Re: Small bore 59a ?
Quote:
Cheaper in the long run. Nowdays it usually takes 5 blocks before you find a good one. |
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06-06-2023, 04:28 PM | #8 |
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Re: Small bore 59a ?
At one point in my life 3 3/8 was the standard over bore, Corse they were pretty new then. Gramps
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06-06-2023, 04:41 PM | #9 |
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Re: Small bore 59a ?
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06-07-2023, 11:59 AM | #10 |
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Join Date: May 2010
Location: Chester Vt
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Re: Small bore 59a ?
Nice one Pete. Built several 3 7/16 X 4 engines, one is still running. I also have a 296 engine that's still running, and it has Hyperutectic pistons in it. Only set I ever saw, baught them at the Yorl flea market back in the 90's
Gramps |
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