Mark Seen your previous posts here looking for more power out of a WD. Best way I know of is to put in a D17 engine. D17 engine would be a direct drop in. A good alternitive would be to use a engine out of a E gleaner. Few things to change out but should be able to pull needed parts off your engine. As to a partial or complete LP conversion I don't think the parts needed are or were ever available. On the WD45 Allis did a dual fuel conversion. Tractor would burn both Gasoline and LP. Was a compromise at best. The horse boost you get from LP is due to the fact that you run a little higher compression due to LP's higher octane and you don't need to preheat the intake air. Since Allis did the dual fuel thing a true LP manifold doesn't exist and neither do the heads. Parts off a D17 LP may provide what you are looking for but will be as scarce as hen's teeth if they were different at all. I have worked on a couple of these but didn't look to see if there was any difference. That D17 motor will stick out like a sore thumb only to the knowledgable. Webs on the outside of the block, no tappet cover, and full flow oil filter. HTH jt
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