I had a quick question for you mustang guys. I signed on here to ask a question for my friend. He has a 5.0 that came out of a 79 truck. He has been looking for aluminum heads for his mustang but he can't find any. I told him that they may have put aluminum heads on some of the later model 5.0's but I didn't know for sure. I wanted to know if any of you knew of any years that was a 5.0 and had an aluminum head that he could take off an engine at the junk yard of something. He doesn't have a lot of money to work with because he just bought a s/c for his mustang. And also if there is a model that has aluminum heads, will they fit on his engine. I figure they would since they both are 5.0's, but they might have been a change in the engine that would prohibit that. Thanks for reading my message.