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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

C3AZAB.....what engine is this

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Old Jul 25, 2016 | 06:12 PM
  #1  
rsh1966's Avatar
rsh1966
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From: West Tennessee
C3AZAB.....what engine is this

Here is the placard on the side of the block:
C3AZAB............390
BORE...............30 ???
MAIN. BRGS......10
ROD BRGS......10
i will try to download a picture of the placard.


INTAKE MANIFOLD:
5G13:
C5AE94258


I do not think the pics worked, so I will call tomorrow for some help downloading pictures.
Sorry for such a mess with the thread. I do not have the title for the truck, but it should be a 1966 and I was told it has a 352. However, the block placard looks to be 390 and the bore (rough measurement) measures 4.10. I do not have the pistons out so I can't measure the stroke or can I. If I rotate the engine (clockwise) until a piston bottoms out and then measure the distance to the bring the piston back to the top, then that should be the stroke. Am I right or wrong??
Any input will be appreciated.
rsh1966
 
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Old Jul 25, 2016 | 06:34 PM
  #2  
ID Scrounger's Avatar
ID Scrounger
Mountain Pass
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From: Skagit County, WA
Correct, bottom it out and measure the amount it moves up.
 
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Old Jul 25, 2016 | 08:33 PM
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KO1960
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From: Chico, Ca.
3.5 inches = 352. 3.78 inches = 390.
 
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Old Jul 26, 2016 | 10:36 AM
  #4  
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NumberDummy
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From: Simi Valley, CA
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C3AZ-AB is the rebuilt part number used by FoMoCo authorized engine rebuilders. Long block would be: C3AZ-6012-AB .. Short block (less heads) would be: C3AZ-6009-AB

These parts numbers are only listed in the rebuilt parts catalog. Since I don't have one from this era, I cannot give you the applications.

5G13: Engine block cast July (G) 13, 1965 (5).

Fred Jones was a long time FoMoCo dealer in OK .. Still in the rebuilt parts business today located in the former FoMoCo OKC assembly plant.
 
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Old Jul 27, 2016 | 09:08 AM
  #5  
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rsh1966
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From: West Tennessee
Bill, I was counting on your reply to my numbers question. Your reply gave me what I needed. I just wanted to understand why I could not find C3AZ-AB in the Ford build data. Your note explains it very well. The engine was born as a 352 and went to rebuild and now it is a 390. It is great to have a resource like yourself in the forum.
thanks for your timely reply.
rsh1966
 
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