Air Hold Adapter Set Includes 14mm and 18mm Sizes 1/4 NPT Female Thread Use In Spark Plug Holes Black Proform Dial Indicator Gauge 5 Ratio With 7/16 Inch

5 Ratio With 7/16 Inch Stud

Comes With Two 120 Grit Grinding Wheels

Never lose or damage another jet again

This natural finish billet aluminum backing plate is compatible with any electric water pump that mounts to the stock Ford timing cover

Backed by a limited 30 day factory warranty

Air Hold Adapter Set Includes 14mm and 18mm Sizes 1/4 NPT Female Thread Use In Spark Plug Holes Black Proform Dial Indicator Gauge 5 Ratio With 7/16 InchNow that you have the PROFORM Valve Spring Tester, you will need a set of PROFORM Air Hold Adapters to remove your springs with the heads on the engine. It is a simple 3 step process: screw the air hold adapter into your spark plug hole, attach air fitting, and then an air hose. The air pressure will hold up your valves while you get to work! Sold as one set. Product Details: Air Hold Adapter Set Includes 14mm and 18mm Sizes With 1 4 Inch NPT Female