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John Deere Tractors Discussion Forum
:

Engine Swap

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raymondy

01-18-2019 13:35:42




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This has probably been asked but after searching I couldn’t find anything on it. Will a 5020 engine fit in to a 4020 housing? Frame rails different? Engine length different? Has anyone done this before. Currently have a 4020 with a gas and wanted to bump the HP/torque on it. I attached a picture of the 5020 engine tag.

Thanks,

-Raymond

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Tx Jim

01-21-2019 03:20:02




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 Re: Engine Swap in reply to raymondy, 01-18-2019 13:35:42  
I guess that's the reason 55 series rowcrop tractor engines are identified a 6076 engines instead of 466 cid although they are 466 cid



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buickanddeere

01-20-2019 15:58:24




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 Re: Engine Swap in reply to raymondy, 01-18-2019 13:35:42  
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55 series iirc . I should look at that parts book instead of my memory.



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Tx Jim

01-20-2019 10:48:40




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 Re: Engine Swap in reply to raymondy, 01-18-2019 13:35:42  
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b&d

May I ask which JD 466 cid engines have Siamese port cyl. heads? Thanks,Jim



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Tim S

01-21-2019 06:30:48




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 Re: Engine Swap in reply to Tx Jim, 01-20-2019 10:48:40  
"Siamese port cyl. head" would be a way of describing a latter 466 head,4455's and up, where the intake ports share the same opening instead of being divided in the middle.They also have a larger opening in the intake manifold for better air flow.



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buickanddeere

01-19-2019 09:44:52




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 Re: Engine Swap in reply to raymondy, 01-18-2019 13:35:42  
If TimS chimes in. There isn't anything about swapping motors into 4020's that he doesn't know about .
I haven't tried the new online parts books at the JD web site. The old site used to cross reference every machine that a known part number was used in. What are the plans for this 4020 and is it an early or late model ?



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buickanddeere

01-19-2019 06:43:28




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 Re: Engine Swap in reply to raymondy, 01-18-2019 13:35:42  
. A Siamese port 466 with a turbo will make more power than any 531 .



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raymondy

01-19-2019 07:02:40




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 Re: Engine Swap in reply to buickanddeere, 01-19-2019 06:43:28  
Sorry for not knowing but, what would I grab one of these out of? A combine transplant?



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tlock0331

01-18-2019 21:16:57




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 Re: Engine Swap in reply to raymondy, 01-18-2019 13:35:42  
no, it wont, not without a LOT of money and machining. the 5020 series engine is different than the 4020 series.
but my bigger question is, that block is yellow, what did that engine come out of? 5020's didnt have industrial yellow paint. surely it wasnt a 700. Thats a much more important question....



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D-

01-18-2019 13:55:12




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 Re: Engine Swap in reply to raymondy, 01-18-2019 13:35:42  
Won't fit but a 466 will.



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larryanderson

01-20-2019 09:32:38




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 Re: Engine Swap in reply to D-, 01-18-2019 13:55:12  
Salvage yard is best source. Many have been done and there are ways to save time and money.Tim S. would be an expert source.I have been told a 105 404 combine engine is a match but have seen some with 466s that were nicely done.



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