Speedmaster 1-254-021 8.670" Chromoly Heat-Treated 5/16" 0.080" Wall One-Piece Pushrods

Speedmaster 1-254-021 pushrods are precision-engineered, one-piece chromoly components designed for high-performance engine builds. These pushrods feature a heat-treated chromoly construction that delivers strength and durability while minimizing deflection under load. With an 8.670" length, 5/16" diameter, and 0.080" wall thickness, they offer a robust balance of stiffness and lightweight performance for demanding racing and performance applications.

These one-piece pushrods are ideal for engine builders and racers seeking reliable valvetrain geometry and consistent hydraulic or mechanical lifter action. The chromoly material resists fatigue and maintains dimensional stability across high RPM ranges, making them suitable for street performance, bracket racing, and full competition builds. Compatible with standard small-block and mid-size engine configurations, these pushrods integrate seamlessly into custom and modified engine packages where precision component quality matters.

Key Features & Benefits

• One-Piece Construction: Solid chromoly design eliminates joints and potential failure points, delivering maximum stiffness and reliability.
• Heat-Treated Chromoly: Material is heat-treated for superior strength, fatigue resistance, and consistent performance under high-RPM conditions.
• 5/16" Diameter: Standard pushrod diameter compatible with many performance engine configurations and small-block applications.
• 0.080" Wall Thickness: Optimized wall thickness provides strength while maintaining a low-mass design for reduced valvetrain inertia.
• 8.670" Length: Precision length suited to specific engine geometries and rocker arm configurations in performance builds.

Specifications

Ideal Applications

• Small-block and mid-size V8 engine builds
• High-RPM racing and bracket racing applications
• Street performance and modified engine packages
• Custom engine assembly where precision valvetrain components are required