Speedmaster 1.300" OD LS Dual Valve Springs 134 Lbs @ 1.800" - PCE272.1012

The Speedmaster PCE272.1012 is a precision dual valve spring designed for high-performance LS engine applications. These springs deliver 134 pounds of load at 1.800" installed height and feature a 1.125" coil bind specification, making them ideal for demanding engine builds that require consistent valve control across a wide RPM range.

Manufactured to exacting tolerances, these LS dual valve springs are engineered for durability and reliability in both street and race engines. The 1.300" outer diameter and load rating ensure proper valve train geometry and seat pressure, critical for maintaining engine performance and longevity. Compatible with LS-platform engines commonly found in Chevrolet, GMC, and other vehicles, these springs support forced-induction builds, naturally aspirated performance modifications, and competition use.

Key Features & Benefits

• 1.300" OD Specification: Precision outer diameter ensures proper fitment and valve train geometry in LS engine applications.
• 134 Lbs Load Rating: Delivers consistent spring pressure at 1.800" installed height for stable valve control across high RPM ranges.
• 1.125" Coil Bind: Engineered solid height prevents coil bind interference and protects internal engine components.
• Dual Spring Design: Provides enhanced valve control stability and reduced resonance in performance engine builds.
• LS Engine Compatibility: Engineered specifically for LS-platform engines used in Chevrolet, GMC, and compatible vehicles.

Specifications

Ideal Applications

• LS engine performance builds and modifications
• High-RPM street and race engine applications
• Forced-induction and supercharged engine builds
• Engine rebuilds requiring OEM or performance valve train upgrades