help de-codeing numbers on block

[chevy6673]

am thinking of putting a big block in my 66 impala ss the motor in it i rebilt 2 or 3 years ago i was told it was a 1973 corvette L82 when i got it over 20 years ago but am not 100persent sure.. can anyone de-code this for me ..thank you for any help,, front pass side head on pad 13s432561 / v0621cla on back 23 gm 3970010 .... i didnt want to tell someone its something its not .. thanks again mike

 

[Tom65L76/96LT1]

Just from looking at the Corvette Black Book it looks like the engine out of 73 Corvette # 32561, CLA is the engine code for the L48, 190hp with auto trans, not an expert on #'s so if someone reads this different please jump in here.

 

[6880 Mike]

Tom is correct. Your engine is a '73 L-48. It is not an L-82. If #32561 is still around, I bet her owner would like to talk to you.

 

[chevy6673]

Tom is correct. Your engine is a '73 L-48. It is not an L-82. If #32561 is still around, I bet her owner would like to talk to you.

mike how much do you think its worth ..just a ball park price ..

 

[6880 Mike]

I have no idea. It would be valuable to the owner of #32561 or to anyone restoring a '73 since it is a correct L-48.

 

[chevy6673]

I have no idea. It would be valuable to the owner of #32561 or to anyone restoring a '73 since it is a correct L-48.

thanks again