Conclusion
After the engine dyno stopped screaming, we were blessed with the fact that it's a great time to be into LS engines. Not only do the stock heads that come on an LS2 hold a ton of potential, but also big manufacturing companies are really putting out some great products. As for recommendation of a head for your engine project--that's something that is on a case-by-case basis. But, we can say that there certainly is a head out there for whatever you are building. If you are on a budget, the stock head rocks with a little attention. In fact, as we showed with our first test on the LS2, a nicely done set of stock heads with a modest cam is probably all that the typical enthusiast needs. If you want more, then step into the AFR, Dart, Edelbrock, or TFS offering. They each have their own unique strengths with none of them offering false advertising. With the performance starting to even out, it seems that we may have to push this collection of heads a little harder. How would they stack up on a 404-inch LS2 with more cam and compression? Or, what if we introduce a 150-horse shot of nitrous into the picture? And, finally, which head performs better when you put 8-12 psi of supercharger boost into them? These are just some of the questions that we hope to investigate in future LS2 testing.
However, next time around we'll be looking at the killer new L92 heads and L76 intake that GM Performance Parts has coming out for the LS family of engines. Stay tuned LS lovers, we've got a lot of cool stuff coming your way.