Anybody ever seen a V8 in a datsun roaster??? Or for that matter, I bet several readers have never even seen a Datsun roadster. I had a 67 that I put a 2.3 liter Ford in, but really wanted to put in a small block 383ci. I went as far as getting a motor and setting it in the engine bay and getting a 9 inch rear with disk brakes. Then went back to school and sacrificed the car due to too many projects. Those cars have an extremely strong frame that has full length boxed rails connected with a huge X shaped frame (again fully boxed) right in the center under the car. It oughta handle all the torque you could put through it without twisting like the Z. This would be a very unique car. Convertible top, light rigid car with a V8, Datsun badge, could be a poor man's Cobra. Screw up all those Ford 5.Nothing Mustangs day real quick. Look for a 67 or earlier car with a bolt on lower profile windshield, it looked better. Don't destroy a 2000. They look identical, but it is already a screamer and getting valuable. The 1600 overheated and warped heads making them plentiful as non-runners. When I went out to Northern Cal several years ago I saw several still getting around.