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Old 11-22-2004, 02:21 PM   #1
dunkinhard02
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Join Date: Sep 2004
Posts: 21
Question Engine casting 3970010...

I finally got around to getting the casting number off of my block, and it seems that I have just another run of the mill 350 chevy block. The code is 3970010 (69-79 or 80 350). I am trying to figure out any other information about this block, what year, what it came from, etc. I have not dropped the pan yet, so I do not know if it has 2 or 4 bolt mains. I am assuming that it is a 350 and not one of the '69 302s or 327s. I could not find a date code, but stamped onto the flat panel above the oil filter are the codes 371, 335, and 135N. The carb is a 2BBL rochester coded 17056114 and 265 5ABP which appears to come back to a 76 Monte Carlo with a 305. There is a 16 cast into the bottom of the block below the fuel pump. Also, the intake is stamped with 3887773 and GM2. The crank pulley has 458530CH stamped onto it. The entire engine is painted in chevy blue as seen in the attached picture. It was raining when I took it, and I haven’t had time to clean up under the hood. Please excuse the insane amount of blue wire loom the previous owner has scattered around the engine compartment. Thank you in advance for any more information you might have on this block.

PS...I know that the fan is not designed for a V-Belt system, I have replaced it since this photo was taken.
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Last edited by dunkinhard02; 11-22-2004 at 02:24 PM.
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