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Thread: New to the forum! 1949 Willys Truck

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  1. #1
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    New to the forum! 1949 Willys Truck

    Got the truck from my mother about 4 years ago finally have the time and some money to start working on it. Hasn't ran in over 20 years so i'm planning on tearing it down to the frame and re doing everything. body is pretty good. engine has a crack in the block and it has been sitting out side so basically everything needs ran through. I am thinking of doing a diesel probably cummins engine but i'm still on the fence of going that route due to costs plus i haven't done any measurements on it. I'v had a lot of ppl tell me just put the cab and bed on the a new frame but i'm not really interested in that kind of a sentimental thing.

  2. #2
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    Welcome, I think a diesel engine in Willys truck is a cool idea. I am thinking about putting one in my CJ3A. They do cost a bit. I have mine estimated as a $6K mod using a Kubota and the prices I have found so far (it may take a while to make that happen). New blocks for the original engines are now available for less than $2K and some cracks can be repaired.

  3. #3
    Super Moderator LarrBeard's Avatar
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    The '48 and '49 trucks have really classic, clean lines.

    You can put either the F-head or L-head engine in it (depending on what you can find). High ratio rear-end gears make for high revs to run 55 or 60 mph - which a lot of guys want from an engine swap.

    Here's the '48. It cleaned up pretty good
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    Quote Originally Posted by LarrBeard View Post
    The '48 and '49 trucks have really classic, clean lines.

    You can put either the F-head or L-head engine in it (depending on what you can find). High ratio rear-end gears make for high revs to run 55 or 60 mph - which a lot of guys want from an engine swap.

    Here's the '48. It cleaned up pretty good
    Do you know if that Red Color is original for 1948 ? If so what is the name of it.

  5. #5
    Super Moderator LarrBeard's Avatar
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    1948 Truck Color

    Quote Originally Posted by Flcracker View Post
    Do you know if that Red Color is original for 1948 ? If so what is the name of it.
    In 1448, according to most lists, Tunisian Red was the only red offered for trucks. Luzon Red was offered for CJ-2A's. In 1949 both Tunisian Red and Luzon Red were offered for trucks.

    Tunisian Red is the darker of the two and after looking at an unfaded place on the truck that still had original paint and comparing color guides, our wives told us it was indeed Tunsian Red.

    Therefore, it had to have been Tunisian Red.

    Just a comment about engine swaps. To run 55 with a Ford 302, the drive line with 5.38 rear end puts you at 3300 RPM.

  6. #6
    Super Moderator gmwillys's Avatar
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    Welcome! I found some information on a Cummins swap in a Willys Jeep pickup. If you can find a 4BT for a reasonable price, that would be the way to go. The 6BT would require a lot of frame and suspension beefing in order to support the extra weight. The standard Willys frame is able to handle the weight of a V-8 gas engine, but the increase of torque can twist a standard frame fairly easily. I have a 63 wagon with a SBC. The frame has now been stripped, and have found no signs of fatigue. With that being said, a wagon frame has more support from the body being one piece, as compared to a pick up. I have often thought about a Detroit 4-71 two stroke in a Jeep, but I like to torture myself trying to sop up oil puddles in the drive way. Keep up posted on your progress!

    http://www.oldwillysforum.com/forum/...powered-Willys
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    gmwillys
    I just picked up a 55 Truck and still don't know what I'm going to do yet on the motor or what I can do.
    Can you still use all the running gear and change out only the motor to a Ford 302 ?
    Would everything matchup or should I just go with the original motor ?

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    willys 1.jpgwillys 2.jpgwillys.jpg

    here are so poor pics but better than nothing ill take better ones once i get it to my house probably this weekend. Need to find tires cant read the sizes so ill have to measure them. Does anyone know were i can get tires locally or will i have to order them i haven't really looked into it much yet.
    Last edited by mcgregordm; 03-12-2018 at 10:34 AM.

  9. #9
    Super Moderator gmwillys's Avatar
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    The wheels look like 16" wheels. The stock size would have been 700 X 16". Depending on your location, a local farm tire shop would be able to set you up. Kaiser Willys has carries tires, but the shipping would be expensive, (not covered under the $98.00 free shipping). Someone once said that Jegs has the tires and offers free shipping. Another option would be to use a modern radial tire, just be careful to get one narrow enough fit the rim width. Radials will be more road friendly when you get it out on the road.

    I would try and air the tires up first. You would be surprised on how bad a tire is, will still hold air. I have a set of tires that are most likely put on in the early 50's. The side walls are peeling off in chunks, but they hold air well.
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    Last edited by gmwillys; 03-12-2018 at 01:40 PM.

  10. #10
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    yeah im going to try that first they just look pretty bad. Im going to check with some shops around here to see if they can get any that are 700 or 650 depending thr width i need.

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