[AT] tractor engine blocks

[Jack]

Deere's foundry in Waterloo Iowa has received updates this decade. The link is talking more about the larger frame and rear end castings. 

https://wcfcourier.com/business/progress2014/manufacturing/fired-up-john-deere-completes-million-modernization-of-foundry/article_ce1c2ec3-630e-5aa9-b140-931ee246a9d8.html

This Wikipedia entry does not include the last date for the manufacture of tractor engines by Waukesha.

https://en.wikipedia.org/wiki/Waukesha_Engine

This Waukesha Foundry was bought by a Navistar predecessor, likely Harvester,  in 1946. Was this the foundry that Waukesha Engines got its block castings from? This could explain why Oliver was casting its own blocks. 

https://www.foundrymag.com/materials/navistar-sells-waukesha-foundry-equity-group#close-olyticsmodal

EMD made its 2 stroke locomotive and submarine diesels with a weldment block and cast cylinder liners. Cooling lines ran inside the block and inspecting for internal leaks was a routine maintenance issue. Has any tractor manufacturer ever made a tractor engine block that was a weldment.

Are any tractor blocks being cast in the US or Canada

Oliver was in Charles, City, Iowa because that is where Hart-Parr had been. This would suggest that there was an Oliver foundry in Charles City. Blocks would have to go from the Oliver foundry to the Waukesha engine plant.

https://historymuseumsb.org/the-oliver-corporation/

a prior post mentions that Oliver poured the castings and Waukesha machined and assembled the Waukesha engines in many Oliver tractors.