Plastigage - Green .001in- .003in

The Plastigage - Green .001in- .003in is the industry-standard bearing clearance measurement tool that every serious mechanic and engine builder relies on for precision diagnostics. Whether you're performing a complete engine rebuild, checking crankshaft clearances after machine work, or troubleshooting bearing wear on a high-mileage engine, this product delivers the accuracy needed to avoid costly mistakes. Manufactured by MAHLE ORIGINAL/CLEVITE, a trusted name in engine components, Plastigage removes the guesswork from bearing fit verification and ensures your engine assembly meets OEM specifications.

This green-colored Plastigage strip measures clearance in the .001 to .003 inch range, making it ideal for main bearings, connecting rod bearings, and cam bearings on most street and performance engines. The material deforms under bearing load during assembly, then compresses between bearing surfaces to reveal the actual clearance gap when measured with a ruler. The .001-.003 inch range covers standard production tolerances for most automotive applications, from stock four-cylinder engines to small-block V8s. A single 12.55-inch strip provides enough material for multiple bearing cap measurements, delivering excellent value for professional shops and dedicated enthusiasts alike.

Engine builders and mechanics benefit most from this tool when assembling stroker kits, upgrading to performance crankshafts, or freshening tired engines with new bearing sets. It's equally valuable for diagnosing bearing wear conditions on older vehicles without tearing down the entire engine. Before torquing down bearing caps, wrap a section of Plastigage around the crank journal, install the cap, then carefully remove and measure the flattened strip to confirm clearance is within spec. This method catches assembly errors before they cause catastrophic engine damage, making Plastigage an inexpensive insurance policy for any serious engine work.