1985 chevy c10 swb

[mwooten92]

Originally Posted by nbpro

the motor could be a 302 327 or 350 2 or 4 bolt mains

this is for the 3970010 block

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



the only difference is the 327 3970010 block was a truck industrial motor as you can see.

In 1968 they made 327's with this casting number but they were only 2 bolt main.

Then from 1969 - 1979 they made 350's with this number and they were either 2 or 4 bolt main.

If it's a 4 bolt main, then you know it's a 350.


Hope this helps

yup thats is what i read about the block on google.. our motor stand is busy holding a other motor as u might see in the pictures so i wont be able to see if it 4 or 2 but either way its bigger then a 305! haha wish i new more about this motor though. could help in the long run. owel..