Whats up guys iam still a little new to the game just being 19 but i have turned a few wrenches in my dads shop on the weekends.  
  My problem is pretty straight forward i have 89 Chevy Cheyenne with a 4.3 with performance goodies a 5 speed, locker in the rear and 3.73's and 31in meats. Now time for the look good factor. i want to put the silverado front end on my truck with sum euro head lights. I think the grill will bolt right up if its the right year but the head lights iam not so sure about. Any help with this would be amazing.
                                Thanks
       P.S. I was also thinking about swapping a small block in for the 4.3 but i want to keep the EFI. How hard would this be and what all would i need for this project  
                        Thanks again  

stylin trucks has everything you need to put the new grille and headlights on. the company has quite a few different styles of headlights as well.

the EFI manifold will not fit on a small block but you can easily find a complete EFI small block in the junkyard, the aftermarket or at gm performance parts.