Will a 351c fit in my 65 coupe?
If not, what the strongest 351 that would fit in this coupe?
Thanks.

 

a 351c will fit, talk to dodgestang about how he did it.

other than that you want a 351W, the earlier years are the stongest

 

Sure.

Need to use:
Early 65 mustang 3 peice motor/frame mounts
Low rise intake (xcelerator 4v fits)
Drop base air cleaner
Fordpowertrain headers (you can use tubular auto but I dislike the criss/cross under the oil pan design and you little hands to install header bolts
Torque strap