These high-performance aftermarket heads provide more power, better holeshots and top-end speeds. The heads are ported, decked for higher compression and the stock valves are replaced with a larger solid stem stainless valve. BPS recommends using 1.5:1 ratio roller rockers, head gaskets, and heavy-duty pushrods with our Iron Mountain heads when your engine will be run over 4500 RPMs.
For more info, go to www.backwaterperformance.com