351 W Identification

If the 67' has a 351w, it does not have an original motor in it. The 351w first came out in 1969. The small V8 in 67' is the 289.

Look at where the distributor meets the block. Is it at the same level as where the intake manifold meets the block? If so it is probably either a 289 or a 302.

If the intake manifold meets the block about an inch above where the distributor meets the block, then it is a 351w (assuming that it is indeed a windsor based motor.

Posting a pic of the motor should help to alleviate any doubt, especially if it is something different such as a cleveland motor (which came out in 1970.)

Otherwise, find the casted #'s on the side of the block and post them here and someone will be able to tell you exactly what it is.

Hope the pic shows up...
Look for the rib on the block in front of the distributor.