Thought I would show some pictures of the 52 F6 getting a 337 flathead dropped in it. I know how you guys like pictures and hopefully this works. The conversion is a lot of work and a lot of modifications to make it fit but hopefully when its done it will look good and make all the hard work worth it.


http://i156.photobucket.com/albums/t...2/100_0681.jpg
http://i156.photobucket.com/albums/t...2/100_0490.jpg
http://i156.photobucket.com/albums/t...2/100_0683.jpg
http://i156.photobucket.com/albums/t...2/100_0431.jpg

 

man that looks good. what did you do with your "small block" 239? what are your plans for your truck and are you running the OD five speed? Your frame looks like it is in great shape. The hard work will pay off as it will be a blast to drive!

 

I wonder how one of those will fit in a Jag IFS swap? That looks great.

 

Wow, that is one big chunk of iron. Looks great. Don't see many of them around any more. Keep us posted on your progress.

Gil

 

i need one of 'em to stuff in the 53 ................

 

Thanks for all the nice comments. When I get this truck done I want it to look good and then when I take it to a car show I'm going to hang a sign off of it saying to "Go ahead and touch. I'm big and I'm tough...not like the little Chevy down the line with mirrors under it."
The truck came from Missouri and originally was a Navy Ordnance truck out of Kansas and manufactured in KC plant. When I got the truck home I wire brushed the frame just to knock off the dirt more than anything and painted it. You can see the part number on each and every piece as if it rolled off the assembly line yesterday. The only pitted place is where the battery leaked over the years onto the frame.
The engine I drove out to Virginia and picked up. It was out of a Lincoln and the guy had it running a sawmill. The transmission is I think a Clark 5 speed out of a 49 or 50 F7 fire truck. Since its a Lincoln motor it had a different flywheel so I had to modify the 337 truck flywheel and the crankshaft to bolt the two together. A Lincoln 337 has the pilot bearing mounted in the crankshaft and the 337 truck motor the pilot bearing is in the flywheel.
I had to cut and modify an additional crossmember because the difference in fit and length. You cant move the F6 cross member because you loose where your brake and clutch peddles mount.
I just finished bolting the transmission in today and now its time to make a drive shaft. The bigger 337 used a bigger driveshaft and to get it to bolt up to the two speed rearend of the F6 I need to reduce it down to the smaller yoke. So that is the next project. With the length of the 337 motor and big transmission I've been contemplating whether to do away with the carrier bearing and two shafts or just make a one piece drive shaft.
I wouldn't say this is a difficult swap but its real time consuming. Everything needs modified, cut, machined and cussed at a few times to get everything lined up and fitted. Ask me if I'd do another mod like this and I probably would because I stupid and addicted to bringing new life into these old trucks.
Once the drive line is done then I'll see how the cab fits and how much modifying I need to do to the floor. The way it looks the cab should fit pretty close with the gear shift only about 6 inched back from where it originally would have been.
I pulled the 239 or 255 and out and its sitting in the garage for a future project. The motor I pulled has Mercury heads and may or not be a Mercury. I never pulled the heads off to check the stroke.

 

work in progress, but it fits. Will need to move it another 1” forward. As pictured firewall would interfere with head.

 

So the transmission was from a F7 Fire truck: Score = That would be a Clark 5sp overdrive. Unless it was ordered with a direct 5sp which I doubt it. Myself I wouldn't go
with a one piece drive shaft just work with the front shaft and machine a bushing. I have
done many that way but I have a lathe and spin shaft between centers and indicate it and mig her up, but you need a piece of F7 F8 shaft even F700 F800 or any make that
uses a Clark 5sp. Lots of Internationals Dodges etc. sam