Many people new to racing understand that aluminum is lighter than cast iron ... of Racing Head Service cylinder heads See All 3 Photos PRO 1 aluminum cylinder heads for small-block V-8s deliver ...

The new RHS lineup has something for every enthusiast, from cast-iron replacements to full CNC-ported aluminum race heads. In addition to the small-block ... The Gen 3 heads also feature a ...

The cam and valvetrain components were installed along with the original Chevy cast-iron heads. Then we did a baseline ... All rockers fit 3/8-inch studs.If you use other brand rockers, you ...

Wendell, your heads share similar characteristics with '87-'95 iron production ... setups). ID Chevy heads by the casting number's last three digits. The full number is cast on the valve-cover ...