50 series 466 in 4430 question

pmw

New User
Hello. My dad and I are swapping the engine in our 4430 with a 466 out of a Titan II 6620. We're running into the problem that the bolts in the engine that attach to the frame rails are different sizes. The new engine takes larger bolts, which won't fit in the holes in the current frame rails.

We got some 4450 frame rails from the junkyard, but this brought up a new problem. The holes that attach the steering unit are also bigger on the 50 series rails.

So right now we're stumped-the stock frame rail holes are too small to attach to the block, the 50 series rails are oversized for attaching to the steering motor.

I was just wondering if anyone here had attempted to put this kind of engine into this tractor, and how you fixed this issue.
Thanks!
 
WE run into this on pulling tractors. The fix is to alter frame rails. Usually we cut the small bolt
pattern from original rails and weld in new / larger bolt pattern plates on the inside of original
rails. New replacement rails are made this way on some models verses the original stamped bolt hole
pockets. DW
 
This 4640 received a 7810 496/8.1L engine.
It requires same mod as described.
I have done it myself on Deere 4440 fitted with a 5720 chopper (or 4840 engine).
mvphoto47881.jpg
 

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