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Message: <blockquote data-quote="Sczmtns" data-source="post: 127343" data-attributes="member: 22107">So last year I rebuilt my 4g32 in my 742b.Pistons were the hard part.Most other parts, belts, plugs, alternator, water pump, gasket kit, were easy to find.I reached out to many of those places that advertise rebuilt 4g32 engines and none had pistons so I wonder how they were going to do it.Specs are hard to find for the engine, like which specific pistons it needs. I bought a set from Hacus that said 4g32, no go. They took them back. I found a set for the g32b on ebay and they looked like the old ones and it's been running smooth with them in it.In my research I found a lot of references in this forum about converting to the 4g63, seemed like that engine was more popular and parts more available?Mine runs propane, was there when I got it, replaced the insides as part of the rebuild.</blockquote>