To find a suitable replacement, you'd need to do extensive research comparing dashes from similar-year GM vehicles (like Chevelles, Cutlasses, etc.). Even then, significant modifications would almost certainly be necessary – potentially involving cutting, welding, and fabrication work. This would be a very challenging project requiring advanced automotive skills.
Your best bet for a replacement dash is to:
* Search for a used dash specifically for a 1976 El Camino: This is the most reliable option, although finding one in good condition might take time and effort. Check online classifieds, salvage yards, and classic car parts suppliers.
* Consider a dash restoration: If your existing dash is salvageable, professional restoration might be more cost-effective and less work than trying to adapt a dash from another vehicle.
* Explore aftermarket reproduction dashes: Some companies specialize in producing reproduction parts for classic cars. Check to see if a reproduction dash is available for your '76 El Camino.
In short, while theoretically possible, using a dash from another car is extremely difficult and impractical for most people. Focus on finding a dash specifically made for your 1976 El Camino for the best results.