engine code?

What is the engine code to the VR-4?????
Any information of where I can purchase one?

6g72 www.streetimports.com

any reason?

Yea, There is a perfectly good 93 VR-4 parked at a shop/car club here, called NRG and everything is fine except the engine is making a knocking noise. Something about the block. And so I figured I could buy a newer engine for it! The guy is going to sell me the car for $5,000, and he said he could get me an engine for $1000 which is really cheap! So goodluck to me!