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Topic: 1948 KB5 Grain Truck
Posted by cleddy on 12-07-2017 10:21:05

I just picked up a 1948 KB5 International Grain truck with a six cylinder Flat head engine. This truck been sitting outside for a long time with the hood open am not very optimistic about it running again. Will have a better outlook if it is not stuck and I can get the rusted off spark plugs out.

Would a 1954 235ci six cylinder Chevy engine be a good choice for a transplant. I have an extra engine that came out of a running pickup. In spite of all the gearing I want more power for what I want to do with this truck.Cleddy

Response: Re: 1948 KB5 Grain Truck
Poster: FastFarmall    Date: 01-03-2018 17:07:49    Thread: 40695.html
If you can fine a 292 chevy, about same size as a 235, way more power, especialy if you don't have the 2 speed ax. But a older GMC 6 cyl is about 2 inches longer than a chevy

Response: Re: 1948 KB5 Grain Truck
Poster: cleddy    Date: 01-04-2018 12:43:40    Thread: 40696.html
Is a 292 a 6 cylinder? We had a 1961 Chevy impala engine that ended up in a 1960 Rambler which would of been okay if someone hadn't came along and broke all the windows out.

That 1961 Chevy engine runs like a top yet even though it hasn't been used since 1980 when it was parked in the trees.

This truck engine is definitely stuck and will not see any attempt to free it up until we get some break on temp's in Nebraska cleddy

Response: Re: 1948 KB5 Grain Truck
Poster: ericlb    Date: 12-19-2017 07:05:15    Thread: 40674.html
with this kind of swap, its probably easier to get the 235 and its 4 speed transmission and put the whole thing in the ih, you will have some fab work to get it mounted, then make the change at the u joint of the driveshaft, if a conversion u joint wont get it done, a driveshaft shop can fab something to work between the ih driveshaft and the chevy transmission, your probably going to have to change that anyway , longer, or shorter, there may be a kit out to mount the chevy to the ih trans, but both units are long out of use, and finding one is going to be hard

Response: Re: 1948 KB5 Grain Truck
Poster: cleddy    Date: 12-19-2017 08:15:02    Thread: 40675.html
Thanks for the information. That was exactly what I was hoping as a few years ago a body shop sold me the 1954 Chevy engine set up complete with clutch & transmission and it came out of a running pickup some one was turning into a Hotrod.

It looks like the mounts are similar with one in front & two on the sides. I sure modifying &welding will be involved which I can handle as long as the drive shaft will connect somehow?

This truck is back on six tires now after repairing 5 out of 6 of them. The engine does seem to be stuck so if ATF&Acetone soaking doesn't work to free it up,it is out of there.
I am more familiar with the Chevy engine since there are five in my collection and four that should run.cleddy

Response: Re: 1948 KB5 Grain Truck
Poster: ericlb    Date: 12-20-2017 05:00:14    Thread: 40678.html
on the driveshaft, they make what is called a conversion u joint, the cross and cups are longer, or bigger on one side than the other, you will; need to measure your ih shaft and what goes in the chevy trans, sometimes you cant get one of these in the correct dimensions,it will take a auto parts man who knows his stuff, if that doesn't work a driveshaft shop can fab something that will make the 2 pieces of driveshaft work for you,as with any swap prepare to have to either lengthen or shorten the shaft to make it work with the new engine and trans if you have to go that way you will need to tell them exactly how long the unit needs to be, dont forget to allow for the slip yoke to move

Response: Re: 1948 KB5 Grain Truck
Poster: Duane WI    Date: 12-09-2017 10:31:44    Thread: 40668.html
I think Chevy put the 235 in similar sized trucks to the KB5. I would expect it to work as well as the original IHC Green Diamond engine. I have a Chevy 235 in my KB1. Doing the swap is not a bolt in by any means.

Response: Re: 1948 KB5 Grain Truck
Poster: Shaun Wallace    Date: 12-08-2017 17:38:08    Thread: 40667.html
The 48 KB2 I had a 216 GRD in it. Have seen Ford 223 6cyl in one. What was done to make fit have no idea.

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