Peterson Spring has been involved in the racing industry for almost a century. As a major supplier to all of the premier camshaft manufacturers, we manufacture state-of-the-art and custom street, drag strip, and circle track valve springs.

Developed by Peterson Spring, PACALOY® Valve Springs are produced out of the highest quality, super-clean, high strength and superior alloy spring wire, which has standardized the professional racing industry.

PAC-Enhanced™ Valve Springs, another Peterson engineering development, sets the benchmark for valve spring load-loss and fatigue life in service racing conditions.

Pro-PAC™Valve Spring technology is the latest engineering advancement introduced to the racing industry by Peterson Spring.

Please visit www.racingsprings.com for more information.