Ok I have been given a 350 Block that been bored 30 over I need help the numbers i found on it are GM 8970010 can some one tell me what this is or what it camae out of I think it came out of a van will it be worth building?? whats the best thing to do? graemlins/clonk.gif

I did a quick search and came up with a 3970010, no "8". You sure it's not a 3?

CASTING CUBES YEAR MAINS VEHICLE
3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4

Here's the website: http://www.mortec.com/castnum.htm

Maybe you'll get lucky and it's a 302!