Leakdown Tester Kit Dual Gauge 14mm and 18mm Spark Plug Hole Adapters White Dial Faces Proform Pinion Fits All 1973-1990 GM V8

Fits All 1973-1990 GM V8 Engines With HEI Distributor Using Internal Coil

Made From High-Quality Steel With A Natural Finish

Made from high quality steel material

coupled with precision throttle shafts to ensure long term performance

Simply tighten down to install the bushing

Leakdown Tester Kit Dual Gauge 14mm and 18mm Spark Plug Hole Adapters White Dial Faces Proform Pinion Fits All 1973-1990 GM V8This dual gauge leakdown tester measures the condition of your head gaskets, piston rings, and valves. The gauge records incoming air pressure, and the right gauge records individual cylinder pressure and the difference is you leakdown. Includes 14mm spark plug adapter. Sold as one kit. Product Details: Leakdown Tester Kit Dual Gauge Model with14mm and 18mm Spark Plug Hole Adapters White Dial Faces Are 2 . 50 Inch With Black Numbers 2 Foot Hose Length