I'm just kidding
Like I'v always said you can put anything in anything. I know it can be done but I'm making fun of people that ask questions like this, my answer is why dont you just buy a car thats already fast. Oh and If I was going to do it I'd do it myself, cause I'm bad like that!

if you take out the seats first....f

I own a shop, and have messed with stuff like this all my life. No this wouldn't work out. You could get a frame from an S-10 pick-up truck, work out the details, and put the Datsun body down on the assembly. You may be kidding, but I'll bet you some fool out there would try to do this. A viper motor is almost as long as the Datsun, lol. I once saw a 4x4 Corvette that sit up about 6 feet off the ground. Go figure???
Glad to help out, Good Luck!!!

Yes you can put a Viper engine in a Datsun. You can use some friends to pick the engine up and place it in the back of a datsun pickup.

Sure you can. Get your wallet out. Take about $50 to 80,000 out of it, Send it to a chassis shop,and they can build you a chassis and drive train to make it happen.I'm not kidding,you have enough money and people with skill they can make almost any dream happen, car wise that is.