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believe most SD Engines had Ford supplied Bell/Clutch housings which are unique & not SAE patterns. This info is not supplied in Spicer manuals for casting #'s supplied to Ford.
The engine side of the clutch housing I'd unique yes, but the trans side is too? So there is such a thing as a Ford pattern Allison 545.
The Trans Side is non ford, or OEM standard. There are Allison Bellhousings available online if you search. There was one on Ebay and Commercial Truck recyclers usually have them in stock. Finding a good torque converter, not sure about that though. https://truckpartsinventory.com/flyw...ford-534-parts
The transmission is easy, getting the 534 housing to match is the trick. The only SAE 534 blocks were specifically cast for stationary applications (I believe). My engine is not SAE, it's more like a bigger crossbreed of a Y-Block & FE.
Do you have clutch part numbers? What sort of transmission are you running? I've been talking to the guys at Phoenix about an adapter to run an automotive transmission. By the way, do you have any extra goodies. I need a few things. ( Water pump housing and distributor)
The difference between the 477 & 534 is only the pin location in the 534 piston (compression height) which changes stroke length. The rest of the rotating assy is the same.
Although I have no personal experience with this engine, what I can tell you is, the ONLY way to change the stroke dimensions on any engine, is to change and/or modify the crankshaft throw (throw = 1/2 stroke). Changing pistons or rods do NOTHING to change the distance the piston travels from TDC to BDC.
Im interested in fooling around with the specs on this engine and seeing what it would take to make it a performance engine. Does anyone have a source for a decent set of specs for this series? Bore, bore spacing, stroke, valve size, that kind of stuff.
The only "performance" SD motors were turbo'd motors in boats.
There are a number of things that would limit a performance build. The plank head and resultant combustion chamber situation, the weight and strength of the rotating assembly, and the fact that there is no aftermarket support. Add to that the size and weight making it an impractical swap into any smaller vehicle, and you are past your 3 strikes.
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