This highly evolved, race-proven cylinder head is capable of supporting in excess of 800 horsepower in “as cast” form. MERLIN III aluminum heads are available with 310cc or 350cc intake runners. The exhaust ports are 132cc. For those seeking more power, The MERLIN III heads are available with CNC-ported 119cc combustion chambers and ports. This raises the bar to 345cc or 375cc intake runners. The port designs were developed have proven their effectiveness on the track and the street. The net result is a head that combines excellent flow and velocity and has been proven to produce 40 horsepower more than the as-cast MERLIN on a 572 C.I.D. engine. It’s also a great value! They’re available bare, or in four different assemblies that are designed to match your camshaft’s valve spring requirements. A multi-angle valve job and Manley stainless steel valves make the assemblies an excellent value and a real time-saver for engine builders.
HEAD ASSEMBLY BUYING GUIDE Use this guide to match your Cam Spring Specs to our Assembled Heads & choose which assembly you need from the choices below. Please Note: Bare Heads contain no Valves.
