Re: Pulley casting number
I'm holding a '53 Merc pulley right now that looks same as yours. 3/8" belts, closest sheave to rear of engine 6 1/8" dia. and smaller is 5 1/4". Center of large sheave is 2.0" from rear of hub,smaller is 3/4" forward of that.
No numbers at all on mine.
Terry
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"It don't take but country smarts to solve the problem" (Smokey Yunick)
'41 Merc Town Sedan / 260" 8CM engine
'66 Fairlane four door / "warmed up"  302
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