the 340, 62-up poly and all other LA motors have a short flange crank- for use with a flexplate/aluminum torqueflite... the one gary is looking for is the long [3.31] stroke long-flanged poly crank for use with a hub converter and iron p/f or t/f would have to be from a 56 303, 57-61 318 or 59 326.
the 277/301 crank is a 3.13 stroke- would turn a 318 into a 301.... with a rod swap of course. the 2 are easily overlooked when reading quickly.. 3.13>3.31 strokes
-----Original Message----- From: Bill Amberger <Magnumguy@xxxxxxxxxxx> To: L-FORWARDLOOK@xxxxxxxxxxxxx Sent: Thu, Nov 12, 2009 11:24 pm Subject: Re: [FWDLK] Need a 1957-61 318 Poly crankshaft Is there any other crankshaft that would work? I used to hear that the 340's were the same, doesn't help much, as those are hard to come by also. I know a guy who might have it, but he thinks his stuff is gold. I might be able to get you a whole engine?
I'll make some calls this weekend.
Bill The Magnumguy
www.moparstyle.com
Chapel and Magnum/Doba Forums Prov. 16:3
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