GMC

The Specialty Equipment Market Association (SEMA) Show engulfs Fabulous Las Vegas annually. It brings together the biggest names in the automotive world to show off the latest and greatest, whether it’s new products, amazing custom builds, or the newest trends. TheAutoBuilder is excited to be in the thick of it all.

You can’t throw a stone these days without hitting an aftermarket aluminum cylinder head. They perform as good or better than anything the factories put out, and then some. They are much lighter than iron heads, and they’re now extremely affordable. Thanks to competition in the aftermarket, it could easily be said that for the performance and price benefits of a new set of aluminum heads, why would anyone bother refurbishing a set of iron castings?