Just pulled the motor out the 82 and need help

[BigBlocksRule]

It's a '76, 350. GM didn't start casting that block until the late 60's, so it couldn't be a '66. That's the most common casting number of 350 block. Could be a great block if it's a 4-bolt with "2482" cast into the main caps, they're nodular iron instead of grey cast iron. Could be 2 or 4 bolt, the only way to tell is with a scope or by pulling the pan to check.

[Rollinsqrbdy]

Originally Posted by BigBlocksRule

It's a '76, 350. GM didn't start casting that block until the late 60's, so it couldn't be a '66. That's the most common casting number of 350 block. Could be a great block if it's a 4-bolt with "2482" cast into the main caps, they're nodular iron instead of grey cast iron. Could be 2 or 4 bolt, the only way to tell is with a scope or by pulling the pan to check.

Thanks for the info^. Tomorrow hopefully I can jerk the pan off and check for the 2482 stamping(hopefully its a 4-bolt). Thanks again. So The stamping on the passenger side rear of the motor was B20-6. So Does that mean it was built in Feb. 20, 1976? Im new to breaking some of these castings. So bare with me