[chuckbrandt]

C6ME-A and C6ME are pretty generic casting numbers. It could be a '66 - '68 428, but it could also be a 410, 390, 360 or even a 352! I happen to have a 352 C6ME-A right now. I think you really need a sonic test to see if there is some meat to the block at 4.13 (which is what a 428 should be) or if it has been bored within an inch of it's life.

Anyway I'm not saying it's a PI or a Cobra Jet but it _could_ be a standard 428. I suspect it is because most smaller blocks won't take that much of a bore unless the guy was very lucky.

Chuck

*comments based on "High Performance Ford Engine Parts Interchange" by George Reid.