This is discussed a lot. Doing a search using VIN in the search box will get you hours of reading. The short answer when you don't have the original engine is to contact your state licensing agency for their process in resolving the issue. Every state has a way of resolving the problem. Many are similar but every state is at least a bit different. Get your info from the horses' mouth.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
| 
