Speedmaster PCE470.1002 LS1 Hardened Steel Valve Spring Seat 1.263" OD

The Speedmaster PCE470.1002 is a hardened steel valve spring seat designed for LS1 engine applications. This precision-engineered component measures 1.263" outer diameter, 0.510" inner diameter, and 0.041" thick, providing the critical support surface for valve spring assemblies in high-performance and OEM LS1 builds.

As a valve spring seat, this hardened steel part ensures proper valve spring seating and maintains correct spring pressure under engine operation. The hardened steel construction delivers durability and resistance to valve spring wear, making it an essential replacement or upgrade component for LS1 engine rebuilds, performance modifications, and original equipment restoration. This seat is ideal for engine builders and enthusiasts working on LS1-powered vehicles who need OEM-quality or performance-grade valve train components.

Key Features & Benefits

• Hardened Steel Construction: Engineered from hardened steel for durability and resistance to valve spring wear and compression.
• LS1 Engine Specific: Designed and fitted specifically for LS1 engine valve train assemblies.
• Precision Dimensions: 1.263" OD, 0.510" ID, 0.041" thick specification ensures proper fitment and spring seating.
• OEM-Quality Component: Manufactured to exact specifications for reliable engine performance and valve control.

Specifications

Ideal Applications

• LS1 engine rebuilds and overhauls
• Engine performance modifications and upgrades
• OEM replacement for worn valve spring seats
• High-performance engine assembly and restoration