I don;t have any pics but can get some. The engine is at the place that did the 408 install on my truck so I have to go there and take a couple pics. The heads are stock 5.3L heads so if 706 heads came standard then that is what they are.

 

Awsome!!! Let me know... 706 is usually pretty common but I think a few motors got a diffrent casting... may have been just the early ones though... Thanks

 

Any pics yet??? I still have those heads