Description
Proper piston ring gap spacing is critical to engine performance and longevity—incorrect gaps lead to blowby, loss of compression, and accelerated wear. This Proform billet squaring tool ensures your rings are perfectly perpendicular to the bore before installation, eliminating guesswork and delivering consistent results every time. Whether you’re building a race engine or restoring a classic, this precision tool is essential for any serious engine builder.
- Billet aluminum construction
- 4.000–4.230 inch bore range
- Squares piston rings accurately
- Sold individually
- Professional-grade precision
- Proform MPN 67656
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