46 Flatfender Ford Flathead V8 |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Posted: 15 Sep. 2021 at 9:38pm |
There. Made a new topic. That's the easy part.
Edited by wish i knew more - 19 Dec. 2021 at 5:51pm |
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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muley
Member Joined: 25 Jan. 2021 Location: idaho Status: Offline Points: 824 |
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Now what you gonna do?
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Joined Jan-8 2015
I never met a mule I didn't like! OD Mule 01-52 M38 Big Red 19fiddy CJ3A salad |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Now I'm going to measure and shove and remeasure and squeeze the flathead in there. And, and, and....scratch my head several times, maybe fairly hard. Probably won't be many pictures of the process. I thought I'd let you all know what is in the works.
Edited by wish i knew more - 16 Sep. 2021 at 1:25pm |
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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48cj2a
Bantam Trailer Moderator Sponsor Member Joined: 22 July 2005 Location: Central, IL Status: Offline Points: 4523 |
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Contact Rocnroll on the page - he's done this and has the HP Willys Heads https://www.thecj2apage.com/forums/flathead-ford-v8-swap-into-2a_topic16235_page1.html Edited by 48cj2a - 16 Sep. 2021 at 2:07pm |
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Art C USAF (Retired)
47 CJ2A #134955 Project 48 CJ2A #206759 62 L6226 Station Wagon #58167 10900 45 T3-C #191 Project http://www.bantamt3c.com http://www.48cj2a.com |
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muley
Member Joined: 25 Jan. 2021 Location: idaho Status: Offline Points: 824 |
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Ohhhh.. I see, not your ford produced GPW L134 flathead eh?? As in 8 holes not 4.
Edited by muley - 16 Sep. 2021 at 10:17pm |
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Joined Jan-8 2015
I never met a mule I didn't like! OD Mule 01-52 M38 Big Red 19fiddy CJ3A salad |
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Oldpappy
Member Joined: 09 Apr. 2018 Location: Tennessee Status: Offline Points: 4917 |
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Oh, I wish you hadn't brought this up!
I know where I can get a Ford Flathead just for pulling it out of my buddy's 47 flatbed truck, and another buddy has a performance intake hanging on the wall of his barn. I have been greatly tempted to do this over the years, but have looked into it enough to know it won't be the cheapest conversion to do.
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If you can't get there in a Jeep you don't need to be there!
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Right! I actually am pulling out the GPW engine so I can sell it.
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Update time!
I drove an hour away and picked up a flathead v8 in (hopefully) rebuildable condition. It was .030 under on the mains/rods and .080 over on the bore. I was originally planning on just getting the engine running, but then I got to thinking. Why not just do this right the first time. So, I headed into the full teardown. After complete disassembly, I took the block and had it bored to .100 over, decked, valve seats ground, and new cam bearings installed. I also had him resurface the heads. This turned out to be a mistake because the one of the heads was warped and he just planed it off flat, taking all the warpage off on one side. Ruined that set of heads. :( So... I was getting ready to start reassembly and noticed one of the valve seats didn't look right. Apparently the machinist didn't bother to tell me that one of the seats was cracked. So that's where the block is currently. Waiting for me to decide where to take it for new valve seats. In the meantime, I bought an Edelbrock 4bbl intake off Ebay. I bought all new valves, springs, guides, retainers. I bought an aluminum cam gear, engine gasket set, main and rod bearing set, and new Edelbrock 500 cfm carb.
Edited by wish i knew more - 19 Dec. 2021 at 1:25am |
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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One other critical component I found was an old school flathead v8 conversion kit. It came with the bellhousing, flywheel, clutch disk, pressure plate, throwout bearing, and linkage parts.
Edited by wish i knew more - 19 Dec. 2021 at 1:18am |
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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rocnroll
Member Sponsor Member Joined: 20 July 2005 Location: Tuscumbia, AL Status: Offline Points: 13606 |
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You didn't ask but just offering this up....you might want to rethink that 500cfm carb.
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'47 CJ2A PU
'48 CJ2A Lefty "Common sense is not that common" |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Sure? I'm curious as to why you say that. I know I can never make use of all that carb, but is there a loud reason why it wouldn't work? Time will tell...
Edited by wish i knew more - 19 Dec. 2021 at 5:47pm |
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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rocnroll
Member Sponsor Member Joined: 20 July 2005 Location: Tuscumbia, AL Status: Offline Points: 13606 |
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On a stock engine that's way more cfm than you can use....I'm running a 390cfm and its more than I need too.
I'm no expert but have read a lot of flat head books written by those that have fooled with them for years.....that said, I did learn that if you ask 10 people about flat head stuff you will probably get 10 different answers. Not telling you what to do on your own project, that's why I haven't said anything before now...you didn't ask so none of my business.....(I probably would have advised against it but that's not helping at this point) Boring it .100 is liable to present its own problems too but opinions vary on that also.....what are your radiator plans? |
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'47 CJ2A PU
'48 CJ2A Lefty "Common sense is not that common" |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Plans are to buy a radiator that will fit between the headlight buckets and then modify it or have it modified for two inlets/outlets. I could custom order a radiator also, but that may get cost prohibitive. Wait?... this whole project is cost prohibitive..
Steering? That is to be decided yet..
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Ya that's true on more cfm than I can use, but then again most of the time it's just running on two barrels. I can't see how that is much different or worse than the flathead v8 guys that run 2 or 3 two barrel carbs. Ok, I know a 3x2 setup uses one as primary and the other two as secondaries, but not so on a 2x2.
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Be glad I didn't bore it to .125...
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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rocnroll
Member Sponsor Member Joined: 20 July 2005 Location: Tuscumbia, AL Status: Offline Points: 13606 |
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You are in California.....common belief is all hot ridding 'secrets' all come from there. I'm sure you'll run across an expert to help if you need it.
Good luck with it. |
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'47 CJ2A PU
'48 CJ2A Lefty "Common sense is not that common" |
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wish i knew more
Member Joined: 26 Oct. 2017 Location: California Status: Offline Points: 90 |
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Thanks for the luck! I will for sure need it!
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My name is Cameron Koehn.
1946 CJ2A, Frame: -----, Body: 17909. Engine: Flathead V8(proposed), Originally Harvest Tan I think. |
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Michaeltru
Member Sponsor Member x 3 Joined: 22 Oct. 2012 Location: Arizona Status: Offline Points: 988 |
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Good book to read is “flathead facts” by John Lawson. Lots of first hand testing and info about displacements, cranks, cams, carb setups etc. 2 97s is less than 200cfm. 3 deuces less than 300cfm but if you only use the center carb you’re back to 97cfm until the the other 2 carbs kick in. Fun with jetting. And timing Good luck
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Mike in AZ
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