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331 or 347?

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01-05-2006, 09:55 PM

#1

FREED 65

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331 or 347?

I don't know much...having a hard time deciding. I heard 347's do not last as long. Also any recommendations on a good book or source on how to convert a 302 to a 331 or 347?

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01-06-2006, 12:11 AM

#2

spin289

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RE: 331 or 347?

I've heard the same thing about 347's wearing out bearings. Also I think that with a 347 you have to notch out the bottom of the cylider wall for rod bolt clearance. I personally would go with the 331.

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01-06-2006, 12:16 AM

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angcobra

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RE: 331 or 347?

Here is a pic of the notching you have to do.

[IMG]local://upfiles/10436/6155A15FBBB048F698B0D10AD650FC83.jpg[/IMG]

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01-06-2006, 12:17 AM

#4

angcobra

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RE: 331 or 347?

the difference between a 347 and 331 is 1/4 inch of stroke length.

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Old

01-06-2006, 11:36 AM

#5

FREED 65

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RE: 331 or 347?

thanks for the info

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