What year motor in my 66 F100
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Tuned
Joined: Feb 2005
Posts: 283
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From: Monroe NJ
What year motor in my 66 F100
I found a D5 PART # on the intake manifold and a D3 on the left cyl. head and a D2 on the lower block passenger side in front of motor mount. FE motor. Thanks, Tom
Senior User
Joined: Jun 2004
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From: las vegas nv.
D is 70's...75,73,72...sounds like it's seen a little work at some time or another. I bought a motor for parts once that had a mixed bag of 70's numbers on the parts. When I tore it down, all the insides were mismatched also. Different years on the rods, crank and the pistons were from about three sets,including one piston from a 428 in a 390... I hope yours is not like mine. It eventually took 3 motors to get enough parts for one good one.
Postmaster
Joined: Nov 2001
Posts: 3,351
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From: Escondido, CA
A little good news is that you can have different casting codes on one engine. Hopefully your heads have the same codes. Since you intake manifold has the later year code for 65 chances that it still is be a stock engine. Some year castings will carry over for a decade without much change. The 460 engine is a good example. The D1VE block was same until the D9VE came out. So don't get too caught up in the # game until you find out for sure.
If you give us all the full casting #'s we'll be able to tell you what is what.
If you give us all the full casting #'s we'll be able to tell you what is what.
Last edited by airharley; Feb 10, 2007 at 10:45 PM. Reason: info
Cargo Master
Joined: Jul 2006
Posts: 3,014
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From: Concord, CA
Now wouldn't the D5 prefix for the intake manifold indicate a 1975 year and not a 1965? If that FE manifold has that little dog leg at the carb mount then that would cinch it as the 60's didn't. That would make more sense with all the D part numbers present which means he has a replacement engine and it is probably the more common 360.
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tomrooster-1
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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May 23, 2014 07:02 PM
