WHAT IS THE BEST 351 BLOCK TO USE?

[BlueOvalStangGT]

What are the casting numbers we should be looking for? I just picked up a 351 shortblock for free and want to find out more stuff about it.

 

[vristang]

What are the casting numbers we should be looking for? I just picked up a 351 shortblock for free and want to find out more stuff about it.

Check out this link for deciphering casting numbers.
http://www.mustangcentral.net/tech/part.html

Basically,
C9 is a 69 block
D0 is a 70 block

What do you have?