ARP Rod Bolt Stretch Gauge Billet Style – Precision Rod Bolt Stretch Gauge Tool For Engines

This precision billet-style rod bolt stretch gauge from ARP provides a direct, reliable way to measure connecting rod bolt stretch during engine assembly and maintenance. Designed for use with high-performance and OEM rod bolts, the gauge lets machinists and engine builders verify bolt elongation—an accurate proxy for clamp load—without relying solely on torque values. Its compact, billet construction offers durability and repeatable measurements for engine builds where correct rod bolt preload is critical. Ideal for precision engine work, this ARP tool helps ensure consistent assembly practices and improved reliability on high-stress engines.