PROFORM 67654 Billet Piston Ring Squaring Tool for 4.240-4.380 in. Bores

The PROFORM 67654 Billet Piston Ring Squaring Tool provides a reliable way to position piston rings evenly inside the cylinder bore during ring-gap measurement and engine assembly. Designed for bores from 4.240 to 4.380 inches, this tool helps establish consistent ring placement so measurements can be taken accurately and repeatably. Its straightforward design makes it a practical addition to professional engine-building and performance workshop equipment.
Constructed from aluminum with a natural finish, the PROFORM piston ring squaring tool combines lightweight handling with the durability needed for regular shop use. The billet construction provides a solid, stable feel while positioning the ring, helping reduce the potential for uneven placement that can affect gap readings. The tool is suitable for use with compatible piston rings and cylinder bores within its specified range.
The PROFORM 67654 is designed for convenient, repeatable operation during engine preparation. Its focused application makes it useful for builders, technicians, and performance enthusiasts who need dependable piston ring installation and measurement support without unnecessary complexity. This tool is supplied individually and is not air restricted or limited to truck freight shipping.

Features:

• Brand: PROFORM

• Part Number: 67654

• Tool Type: Billet piston ring squaring tool

• Bore Range: Fits 4.240-4.380 inch cylinder bores

• Material: Aluminum billet construction

• Finish: Natural aluminum

• Application: Helps square piston rings for accurate ring-gap measurement

• Package Quantity: Sold individually

• Shipping Classification: Not air restricted and not truck freight only