The Ford Barn

47 flatbed · 10-19-2014, 04:50 PM

Trying to figure out what this engine is. Truck has 85 badges on side. Removed heads has triangle round triangle water holes. Is this a mercury block? On passenger side of block it has BBMC20247 stamped.

rotorwrench · 10-19-2014, 05:03 PM

Round hole instead of keystone shape in the center is a good indication of the early 239 blocks. Mercury and trucks both used them. Someone may have changed an 85 out for a 95 at some time.

47 flatbed · 10-19-2014, 05:21 PM

I have a strong feeling this is the original engine. But with many years past who knows for sure

47 flatbed · 10-19-2014, 05:22 PM

Are the badges original to truck also

47 flatbed · 10-19-2014, 05:24 PM

Is the crank going to be 3 3/4

harley · 10-19-2014, 11:20 PM

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It should be 3 3/4 stroke. Does it have 99T on the heads?

47 flatbed · 10-21-2014, 04:16 PM

No 81 a heads. That's what got me started

47 flatbed · 10-21-2014, 04:25 PM

First year for 3/4 ton truck.

10-19-2014, 04:50 PM	#1
47 flatbed Senior Member Join Date: Feb 2011 Location: Ohio Posts: 419	1939 3/4 ton flathead Trying to figure out what this engine is. Truck has 85 badges on side. Removed heads has triangle round triangle water holes. Is this a mercury block? On passenger side of block it has BBMC20247 stamped.

10-19-2014, 05:03 PM	#2
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,425	Re: 1939 3/4 ton flathead Round hole instead of keystone shape in the center is a good indication of the early 239 blocks. Mercury and trucks both used them. Someone may have changed an 85 out for a 95 at some time.

10-19-2014, 05:21 PM	#3
47 flatbed Senior Member Join Date: Feb 2011 Location: Ohio Posts: 419	Re: 1939 3/4 ton flathead I have a strong feeling this is the original engine. But with many years past who knows for sure

10-19-2014, 05:22 PM	#4
47 flatbed Senior Member Join Date: Feb 2011 Location: Ohio Posts: 419	Re: 1939 3/4 ton flathead Are the badges original to truck also

10-19-2014, 05:24 PM	#5
47 flatbed Senior Member Join Date: Feb 2011 Location: Ohio Posts: 419	Re: 1939 3/4 ton flathead Is the crank going to be 3 3/4

10-19-2014, 11:20 PM	#6
harley Member Join Date: Dec 2012 Location: Ouachita County Arkansas Posts: 59	Re: 1939 3/4 ton flathead Sponsored Links (Register now to hide all advertisements) It should be 3 3/4 stroke. Does it have 99T on the heads? __________________ people have more trouble than anybody

10-21-2014, 04:16 PM	#7
47 flatbed Senior Member Join Date: Feb 2011 Location: Ohio Posts: 419	Re: 1939 3/4 ton flathead No 81 a heads. That's what got me started

10-21-2014, 04:25 PM	#8
47 flatbed Senior Member Join Date: Feb 2011 Location: Ohio Posts: 419	Re: 1939 3/4 ton flathead First year for 3/4 ton truck.