I just received a pair of as cast Aluminum 180cc heads from RHS and was impressed by them. I am building a motor that hopefully you guys can take idea's or copy the whole build in a upcoming issue of CLASSIC TRUCKS. lets just say that I am hoping for 400+ hp on pump gas. Only the dyno numbers will prove what is possible. stay tuned
If your building a small block Chevy then check RHS cylinder heads out.