H1C and WH1C
8 blade compressors that can be either:
45mm, 52mm, 54mm, or 56mm inducers.
the turbine side is identical and wheels are interchangeable with the hx35. housings differ slightly by bolt count on the back.. 2 less bolts. Far less efficient turbos than the hx35 that replaced it, commonly found on first gen trucks.
the intercooled first gens had a larger compressor wheel than the non intercooled version.
dunno if you wanna add that to your list or not...