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06-05-2017, 07:58 PM | #1 |
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Join Date: Jul 2011
Location: Duluth MN
Posts: 594
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Flathead, what do I have here?
Top of bell is marked 59L and the heads are 59A what do you guys think?
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06-05-2017, 08:01 PM | #2 |
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Location: Lancaster PA
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Re: Flathead, what do I have here?
I pulled a 59L block out of a 47 or 48 big truck, I believed it to be the original engine. I don't know what the heads were marked.
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06-05-2017, 08:31 PM | #3 |
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Location: Detroit suburb, MI
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Re: Flathead, what do I have here?
I am far from an expert, but from reading other posts, I would guess that's a '41 thru '48 style Ford flathead V8.
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06-05-2017, 08:36 PM | #4 |
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Re: Flathead, what do I have here?
In my experience 59L blocks were often put in 1946-47 big trucks and usually had the factory relief between the valves and the cylinders.
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06-06-2017, 06:28 AM | #5 |
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Re: Flathead, what do I have here?
I agree with Barn Junk - most that I've seen are factory relieved and came from trucks. It is really not any different or thicker than a 59AB style block - except for the factory relief area (regardless of the old wives tales).
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06-06-2017, 08:40 AM | #6 |
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Re: Flathead, what do I have here?
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06-06-2017, 09:31 AM | #7 |
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Re: Flathead, what do I have here?
I think it's pretty common to see a lot of mixing and matching of flathead engine components on an engine. I also agree with BarnJunk. Pull the heads and see what you find. That will tell us a lot more. I always like opening one of these engines up. It's like unwrapping a present or opening a time capsule. You get to see the size of the bore, if the pistons and valves have ever been replaced and the condition of the cylinder walls tell you a lot about the engines life.
Last edited by Seth Swoboda; 06-06-2017 at 09:43 AM. |
06-08-2017, 10:33 PM | #8 |
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Location: Duluth MN
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Re: Flathead, what do I have here?
Pulled the heads here's the view, did a rough cylinder measurement, inside caliper and tape measure and the bore looks to be a bit under 3 1/4 inch, no cylinder ridge either but it is stuck.
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06-09-2017, 10:22 AM | #9 |
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Re: Flathead, what do I have here?
Picture shows the factory relief that is often seen on 59L blocks. Supposedly these were for truck applications. Bore is probably some oversize re-bore of 3-3/16. Are the pistons marked ".060" or other oversize marking?
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06-09-2017, 12:33 PM | #10 |
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Re: Flathead, what do I have here?
If it's only .60" over size and not too pitted in the bore, there should be plenty of meat left for going further oversize. 3 5/16 is possible but I'd get the block pressure tested and cylinders sonic tested before spending much money for machine work.
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06-09-2017, 04:38 PM | #11 |
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Re: Flathead, what do I have here?
Welcome to the world of taking apart stuck flatheads . . . becomes a nostalgic event after a few decades! LOL
D |
06-09-2017, 09:17 PM | #12 |
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Location: Duluth MN
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Re: Flathead, what do I have here?
I cleaned off the top of a piston and looked closely with a magnifying glass and could not find any size stampings.
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06-09-2017, 09:25 PM | #13 |
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Re: Flathead, what do I have here?
That engine is presently sitting in a 41 coupe, If you notice my profile pic. I have a 40 convert with a flat head that looks the same as this one however I could not find any stamping on top of the bell and the heads just have an A stamped on them no 59, what do I make of that?
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06-10-2017, 07:56 AM | #14 |
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Re: Flathead, what do I have here?
the 59 blocks are post war. your 40, if its original will not have a 59 on it, only some numbers or letters that are foundry codes and have no meaning to us.
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06-10-2017, 08:20 AM | #15 |
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Re: Flathead, what do I have here?
The Big A cast in the head was the 81A head used with the 221 CID engines in the late 30s & early 40s up to the beginning of WWII. It would be consistent with a 1940 85 HP 221 CID V8.
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06-10-2017, 05:00 PM | #16 |
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Re: Flathead, what do I have here?
Well after another close inspection I did find a .030 marking on a piston.
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