Plastigage Green 2pk

The Plastigage Green 2pk by Allstar Performance is the mechanic's gold standard for precise crankshaft and rod bearing clearance measurement. Whether you're building a high-performance engine, rebuilding a stock block, or verifying bearing wear on a used bottom end, Plastigage Green delivers the accuracy needed to prevent catastrophic bearing failure. This two-pack ensures you have backup material on hand for multiple checks or engine builds without interrupting your workflow.

Plastigage Green works by compressing between bearing surfaces under load, then expanding to create a measurable width that indicates running clearance. Allstar's formulation is color-coded green for easy visibility and precise measurement against the included gauge scale, eliminating guesswork and subjective interpretation. The material remains stable at room temperature, allowing controlled reading within a specific time window—critical for accuracy. Each pack contains enough material for multiple bearing journals, making it ideal for complete engine builds where verification of all bearing clearances is mandatory before final assembly and oil circulation.

Experienced rebuilders and performance shops rely on Plastigage Green to confirm clearances fall within OEM or performance specifications before final torque. It's equally valuable for diagnosing bearing issues during teardown or post-rebuild verification. The two-pack format is sized for standard automotive applications across domestic and import engines, from small-block Chevys and Ford modular platforms to Toyota, Nissan, and Honda builds. Proper bearing clearance directly impacts oil film strength, heat dissipation, and engine longevity—making this simple diagnostic tool essential for any serious mechanical work.