All ADA Racing billet heads are made from 6061-T6 aluminum and CNC machined for consistency and performance. Clear anodized for looks and protection against corrosion. This is the head shell only. Includes orings that fit into the grooves in the head shell and brass fittings. This head uses the stock orings in the top of the cylinder. Please note that the water routing is not the same as stock. Water is routed in to the head pipe of the exhaust and exits out the head to the water bypass. Or vise-versa depending on water temperature.
Please note that base gasket thickness will also affect your compression. The thicker the base gasket, the lower your compression. Stock head is equivalent to approximately 45.5cc domes. All compression readings are approximate for sea level elevation on a stock non-ported cylinder.
Domes come as a set of 2 when selected in the drop down above.
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