OEM Style, Dual port type 1 heads ,12mm spark plug, 40X35.5mm Dual spring

These heads are a refined reproduction of the OEM 043 VW dual port 1600CC VW heads which are no longer avaible. These Heads offer better cooling capacity than an oem factory head, ports and combustion chambers are some of the cleanest casting we have ever seen, due to precision casting process. Top Head stud area has added material, for more strength. These heads are intended to be a  big valve performance dual port type 1  head. Heads have 3/4 inch reach 12mm spark plug to prevent cracking, Heavy dual high  rev valve springs, Chromoly retainers and locks. DRD 40X35.5mm stainless steel valves. Heads come standard 85.5mm bore, with .050 step built in, approx 53cc combustion chambers. Temp senors holes are drilled and tapped The Price is for a pair heads of 2 cylinder heads. This head can be bored for larger cylinders sizes at no additional charge. specify your bore size when ordering. A step up from a stock head.