The Proform 67652 is a universal piston ring squaring tool designed to help engine builders accurately position piston rings in the cylinder bore for precise end gap measurements. Proper squaring of the rings is essential for ensuring optimal sealing and engine performance.

Key Features:

• Adjustable fit for cylinder bores ranging from 4.000" to 4.310"
• Ensures consistent ring placement for accurate end gap readings
• Speeds up engine assembly by removing guesswork from ring positioning
• Constructed from durable, high-quality materials for long-term use
• Simple and effective design—ideal for professional and DIY use

Specifications:

• Tool Type: Piston Ring Squaring Tool
• Bore Size Compatibility: 4.000" to 4.310"
• Material: Precision-machined aluminum or steel (varies by production batch)
• Finish: Natural or anodized (finish may vary)
• Application: Universal fit for most domestic performance engines

Applications:
Perfect for engine builders working with small block or big block engines where accurate piston ring gapping is essential. The Proform 67652 ensures repeatable, professional results in street, race, or restoration builds.