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390 Crank ID???

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Old Dec 11, 2002 | 07:00 AM
  #1  
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From: Sun River St. George
390 Crank ID???

 
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Old Dec 13, 2002 | 11:01 AM
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From: Littleton, CO
390 Crank ID???

I just help a guy in the neighborhood clear out an FE from his garage for $75.00. It is supposedly a 390, and a quick but crude stroke check came up close. Tell me if the flywheel end has a half moon cut into it and then a bolt hole over, a square notch. I figured that if anything, it's always good to have a parts motor (or one to build while enjoying the toys).
 
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Old Dec 13, 2002 | 11:14 AM
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390 Crank ID???

Hi Mike, we have gone around on this issue a lot and have determined that you can't positively ID the crank by the presence of a half-moon or notch or both. Some years it's true but others not. Best way is by measuring the stroke. Here are some numbers:

https://www.ford-trucks.com/dcforum/DCForumID7/1278.html

Am surprised you haven't got any responses on the hardcore FE board. Don't worry, we'll take care of you!

Barry
 
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Old Dec 13, 2002 | 11:49 AM
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390 Crank ID???

I agree with Barry, the stroke is the best way to check. The 390's that I have all have a square notch and a hole in the flywheel flange. My 360 cranks all have a half moon and square notch.

Bob
 
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Old Dec 13, 2002 | 11:56 AM
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From: Brea CA
390 Crank ID???

I think I can safely say that all 360 cranks had the half moon. Some 390 cranks had the half moon and others didn’t.

Barry
 
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Old Dec 13, 2002 | 05:00 PM
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Mike G
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390 Crank ID???

Thanks all!!!! I am pretty sure that I did the stroke test correct and came up around 3 3/4 of an inch of travel. You know how it is with a clothes hanger and marker in the dark though... I really enjoy these boards, plenty of info and humor all mixed in one. No matter on how fast it comes, there is always time. I have found that when working on the older toys, slow and steady usually wins out or pays off in the end.
 
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Old Dec 13, 2002 | 06:17 PM
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390 Crank ID???

Mike, I'd put my bet on a 390.
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