need a little help please

[rbkt65]

got these 2 mounts in some stuff i bought. need help identifying please. the one that has the biscuit on it appears to be like my drivers side 340 mount EXCEPT it needs the top corner added as seen on several posts on this site. the black one with no mount looks right BUT holes for biscuit need to be on other side. what do the experts say? tia. rick w.

 

[RustyRatRod]

@Oldmanmopar can probably tell you what they are with one eye tied behind his back.

 

[Oldmanmopar]

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

 

[rbkt65]

thank you very, very much. i really appreciate the info.