So anyhow I was looking round my local junk yard yesterday and i saw an old 48-54 chevy 3600, and it has the older 235 with the two holes on the front of the block for the water pump flow, BUT it has a 2 groove pulley on it which caught my eye. So the question is will it fit on a 58-62 chevy 261? Are the crank snout that they mount onto the same or are they totally different? Because if they are the same I can nab it for 10 bucks, if not no skin off mu nose right lol, any help here would be greatly appreciated, thanks in advance, Tye.