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Old 07-10-2004, 09:02 PM
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327 SBC identification numbers ?

I want to buy this 327 motor for my model A project. The block # is 3914578. ( should be a 1968 327) The heads are 3970010, no accessory bolt holes. I'm not familiar with these heads, does anyone have information on valve size and chamber size? Thankyou.

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Old 07-10-2004, 09:19 PM
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3970010 is the block casting number also, not a head casting.
3914678....327.....68....2
3970010....327.....69....2...Trucks and industrial
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Old 07-11-2004, 07:29 AM
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My literature shows the block to be a 68, the last year of the no accessory bolt holes heads. This block was found in passenger cars, Camaros, Chevelles and Vettes. I have no reference to the head casting number, but my source does not include truck or industrial engines. DV probably has the number pegged correctly. Most industrial and truck motors were built for torque, most likley the heads have small valves and runners.

Trees
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