1.355 Single Valve Springs - RPM Series (16

The PAC Racing Springs 1.355 Single Valve Springs RPM Series is designed for small block Chevy engines that require high-performance valve control. These springs are ideal for competition-grade applications, ensuring reliable performance in high-rpm scenarios where valve float can hinder engine efficiency.

Engineered with precision, these springs feature a robust design that maintains valve seating across the rpm band. The 1.355 inch outer diameter allows for compatibility with standard small block Chevy cylinder heads, facilitating easy installation without modifications. The springs are built to withstand the demands of aggressive camshaft profiles, ensuring optimal cylinder filling and scavenging.

A complete set of 16 springs is included, covering both intake and exhaust positions for a standard eight-cylinder small block Chevy platform. This makes them a perfect choice for engine builders focused on naturally aspirated small block competition, street/strip performance builds, or stock engine rebuilds requiring factory-correct spring replacements.