Whats the better high performance head here, and why Stan
Vortecs!!! They will out flow the double (camel) humps straight out of the box. A decent set will run you about 600+ on summit or jegs.
+1 xFourleafThe Vortecs also have the much more efficient fast burn chambers.Old style chamber on left.,. Vortec on right.
When The Flag Drops,,, The Bull Chit Stops,,, P. Engineer, Engine Builder
Unless your building a numbers matching engine, and are a purist. The (Gen #1) old Iron Heads did there job in the '60' '70 and mid 70's are done we can retire them with the respect they need. I sold 2 pairs of heads. They did change some of them, they put accessory holes in the heads. The Vortec heads have their limits. so be carefull as to what you demend from them.Bob