Need help with this 3970010 block indentification

saggyface

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Looking for motors for a kid I sponsor in IMCA Hobby Stock. Found a motor on FB marketplace and theres a number on the front of the block I havent seen before. Was wondering if anyone could help tell me what it means. The block is a 3970010 sbc, but on the front of the block next the timing chain cover is the number 509. Need to make sure this block is ok for what I need it for. Thanks in advance!!!!

 

TUDRMALIBU67

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I have the same casting numbers, and 509 casting, but under the flex-plate.
 

hurst01

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I can help you with the 3970010 but I don't have anything on the other. never paid any attention to it before.


3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4
 

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