Speedmaster 1.450" OD Dual Valve Springs w/Damper 145Lbs @ 1.900" PCE272.1004

The Speedmaster PCE272.1004 is a precision dual valve spring assembly with integral damper designed for high-performance engine builds. Engineered to deliver consistent spring force and vibration control, this component features a 1.450" outer diameter with a spring rate of 145 lbs at 1.900" installed height, making it suitable for racing and performance engine applications where valve control and reliability are critical.

The 1.150" coil bind specification ensures proper valve seating geometry and maximum lift capability without coil clash. The dual-spring design with damper provides superior harmonic damping compared to single springs, reducing valvetrain noise and extending component life. This Speedmaster valve spring assembly is commonly used in small-block and big-block engine builds, drag racing engines, street performance applications, and engine rebuilds requiring OEM or performance-level valve control.

Key Features & Benefits

• Dual Spring Design: Dual-spring configuration with integral damper provides enhanced vibration control and consistent valve actuation.
• 1.450" OD Size: Outer diameter of 1.450 inches fits standard valve spring pockets in compatible engine heads.
• 145 Lbs Spring Rate: Rated at 145 lbs per inch at 1.900 inches installed height for reliable valve control.
• 1.150" Coil Bind: Coil bind height of 1.150 inches prevents over-compression and ensures proper valve geometry.
• Performance Damper: Integrated damper reduces harmonic vibrations in the valvetrain for smoother operation.

Specifications

Ideal Applications

• Small-block and big-block engine rebuilds and performance upgrades
• Drag racing and high-RPM engine applications
• Street performance and modified engine builds
• OEM-level valve spring replacement in compatible engine platforms