A 1456 was possibly the finest tractor IH made, IMHO. They will make 15-20,000 hours if given even a little care. They are one of the most durable engines out there. You won't have to much trouble finding people in that 15-20,000 club. I just overhauled a 407, and it didn't cost anymore than the 1066 and will probably last twice as long. The camshafts are hard to come by, and the cranks and blocks are too, so it could get a little pricey in that respect. The 400 series engine that came after them can deliver more power, but you shouldn't have any trouble getting 180 or 190 out of that 407, if thats what you need. The weak point would be the shift, as with all 06-66 series Internationals. Unless well taken care of, it might need some attention to take play out in various places. But their reputation for being a tough, dependable workhorse is long-lived and well deserved. I personally think they are getting to be one of the more desirable IHs. They sell all over the place. You might see a straight one sell for $5500 at an auction, and someone may ask and get over $10000 for one in similar condition privately. They are a little hard to come by. The people that had them, loved them, and now there seems to be quite a few wanting to buy them back. Good Luck!
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