The fist 28.5mm Stainless Steel Oversize Valves for the Ghost 212, Ducar 212, and Tillotson 212E Hemi Cylinder Heads
The Ghost 212 is Harbor Freight's answer to the rising karting markets. Based on the popular Ducar 212 and Tillotson 212E engines, the engine features a unique hemi cylinder head. Since each of the engines has a growing fan base and shares the same architecture, EC decided to make stainless steel valves the would improve the performance and durability of the valve train. The stainless steel valves are lighter and stronger, which can allow higher spring pressures, more aggressive cams, and more rpm.
The Ghost 212, Ducar 212, and Tillotson 212E Hemi Heads have a 5.5mm guide and valve. The valve tip is undercut to use 5mm retainers and locks. The EC Stainless steel valves are made the same way to allow stock retainers and locks to be used. If you decide to upgrade to EC's Aluminum or Titanium Retainers, you will need to use the 5mm retainers and locks.
Valve Specs
Material: Stainless Steel Valve
Weight: 27g (same as stock 27mm valves)
Head Diameter: 28.5mm / 1.123
Dish/Flat: Dish
Margin: 0.050
Overall Length: 3.021
Approximate Laid Length: 2.795
Approximate Tip Length: 0.130 (Tip Diameter 5mm)
Retainers: 267-50 (Aluminum Single Spring), 268-50 (Aluminum Dual Spring), 278-50-T2 (Titanium Dual Spring)
