Is it a 390 or a 391 Casting numbers - Page 3 - Ford Truck Enthusiasts Forums

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Is it a 390 or a 391 Casting numbers

  #31  
Old 04-12-2017, 09:51 PM
scottzilla
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Hey all you great fordthusiast. I finally know what size my block is, drum-roll................ It's a 360. I did like i read in a post and measured the stroke and it was 3 1/2" on the number one piston. All i did was insert a dowel and had a friend turn the crank one full rotation, as i held a sharpie against the dowel. The mark left was 3 1/2". Now that i know this, i can move on to my performance build. Is there a thread that i can ask advice on my build? Metal on brothers and sisters.
 
  #32  
Old 04-13-2017, 04:37 AM
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GaryKip
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Lots of good info on page two of : Read First: Technical Info Hyperlink Compilation ( 1 2)
HIO Silver
 
  #33  
Old 04-13-2017, 11:12 AM
scottzilla
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Thank you for the page.
 
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