Description
The high dome heads are a special high performance head only available at H&H. The design, along with the pad over the exhaust valve allows for good compression along with excellent breathing characteristics. These features along with larger valves, radiusing the combustion chamber walls behind the intake valves and filling portion of the valve bowl, produces over 30% more air flow and a similar result in horse power. A 2 pattern cam should be used with these heads. These heads have an area above the piston shaped the same as the early Chrysler hemi pistons. A ball or sphere reduces the surface area to the smallest unit of volume.
