Moroso Leak Down Tester Adapter - OHC H775C30S This creates a "collet" effect

This creates a "collet" effect that binds the two together

drive ratchet or breaker bar to facilitate rotating the crank assembly

A clear sight window allows for filter inspection without removal of the airbox

2 in Height

Moroso Leak Down Tester Adapter - OHC H775C30S This creates a "collet" effectProduct Description: Leak Down Tester Adapter Moroso Tester to 14 mm Over Head Cam 426 Hemi Heads Sold Individually Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance applications. Moroso manufactures over 4000 products, from oil pans and oiling systems, to ignition wire, ignition components, valve covers, fuel system equipment, air cleaners, hard core racing tools,