help identifing a 67 ss 396

[67L78conv]

Sounds like a few questionable issues with this one.

Like Dave said first thing is check the vin number. If it is a 67 V8 it will start with 124377 if it is an I6 it will start 123377 followed by an L or N for the plant and the sequence number. If the numbers have an 8 as the sixth digit it is a 68. Regardless of what it was without a 67 cowl tag, numbers matching drive train or other documentation it will never be able to be proved as a true big block. If it had a 67 cowl tag it would have a 4N for L35 325/396, 4K for L78 375/396 or if it were one of the first L78's it would have a 4P which would again require the original motor or docs to prove it is not an SS 350 or an L30 car. There are no documented big blocks built in 67 without one of those three group 4 designations that I am aware of. One other thing you can look for is the two piece brake line with the proportioning valve located on the drivers side frame rail below the drivers door. These were put on big block cars, cars with AC and certain 67 Z28's.

Hope this helps.

Mike