need a little help please
The one with no mount is a small block pre 73 B or E body The one with the mount is a 318 a body If you notice in the pictures below the 340 does not have the 4th tab on the drivers side as the 318 and 273 does. The orange block is a 318 X block. The bare blocks are 340 and 273 as you can see in the casting numbers
The one with no mount is a small block pre 73 B or E body The one with the mount is a 318 a body If you notice in the pictures below the 340 does not have the 4th tab on the drivers side as the 318 and 273 does. The orange block is a 318 X block. The bare blocks are 340 and 273 as you can see in the casting numbers