Wiseco Pistons S657 Wrist Pin for High Performance Engines

Wiseco S657 wrist pins are precision-engineered piston pins designed to meet the demanding requirements of high-performance engine builds. Wiseco offers multiple material grades to match your specific application, from street performance to extreme forced induction setups.

Material Options:

• 5115 Material: Standard grade chromium alloy steel, case hardened to 58-64 Rockwell C, ground to a surface finish of .15 Ra or better. Designed to withstand the normal wear and tear of aftermarket engine applications.
• 52100 Material: High carbon, chromium-bearing steel made from aircraft quality alloy. Case hardened to 54-56 Rockwell C and through hardened with a fine ground finish. Engineered for high load capacity with outstanding wear and abrasion resistance.
• 9310 Material: Premium low carbon, case hardened steel, hardened to 59-63 Rockwell C with a superfinish ground to .025 Ra or better. Specifically designed for applications requiring high surface strength combined with high core toughness. Ideal for turbo and nitrous applications where high contact stress combines with shock and impact loading.

Each Wiseco wrist pin is precision ground and heat treated to exacting specifications, ensuring optimal strength, durability, and dimensional accuracy for your performance engine build.