Wiseco Piston Pin- 21 x 50.8 x 9.57mm SW 9310 Piston Pin
We have a few choices when it comes to choosing a piston pin. 5115 Material pins are chromium alloy and steel case hardened to 58-64 Rockwell C designed for normal wear and tear. 52100 Material Pins are high carbon chromium-bearing steel made of aircraft quality alloy and case hardened to 54-56 Rockwell C for high load capacity. 9310 Material Pins are high quality low carbon and are case hardened to 59-63 Rockwell C for turbo or nitrous applications.
*5115 Material Pin*
* 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 an aftermarket engine
*52100 Material Pin*
* High carbon, chromium-bearing steel
* Aircraft quality alloy
*Case hardened to 54-56 Rockwell C
* Through hardened
* Ground to a fine finish
* Designed for high load capacity
* Designed for outstanding wear and abrasion resistance *
9310 Material Pin*
* High quality, low carbon, case hardened steel
* Case hardened to 59-63 Rockwell C
* Ground to a superfinish (.025 Ra or better)
* Designed for use in applications which require high surface strength combined with high core toughness
*Excellent to use in applications where high contact stress is combined with high shock and impact loading, such as turbo / nitrous applications
