Actually there were several different versions of the 404 engine and the ones with the small pump work out better in a 4020 because of the better low end power they offer,, the 7020 has the big pump and and was strong when run at higher RPM's but doggy on low RPM's the best up grade engine for a 4020 is a 4240 engine then turbo that..466cid and great low end power plus it will fit in nice and clean..and this engine was in 6620 combines so they are readily available..in the $3500 range..
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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