Speedmaster 8.500" Chromoly Heat-Treated 5/16" 0.080" Wall DNA One-Piece Pushrods 1-254-019

Speedmaster DNA One-Piece Pushrods deliver precision-engineered valve actuation for high-performance small-block and big-block engine builds. Constructed from chromoly steel and heat-treated for strength, these one-piece pushrods feature an 8.500" length, 5/16" diameter, and 0.080" wall thickness—designed to minimize deflection and harmonics during aggressive valve events.

These pushrods are ideal for street, strip, and racing applications where reliable pushrod geometry and durability are critical. The chromoly heat-treated construction resists flex and failure under high RPM and heavy lift conditions, while the DNA design provides consistent performance across a wide range of engine configurations. Commonly used in Chevrolet and Pontiac small-blocks, as well as compatible big-block platforms, these pushrods ensure precise valve timing and reduced wear on rocker arms and valve stems.

Key Features & Benefits

• Chromoly Heat-Treated: Forged chromoly steel with heat-treatment process enhances strength and resists deflection under high-RPM loads.
• One-Piece Construction: Solid one-piece design eliminates joint wear and provides consistent, reliable valve actuation.
• 8.500" Length: Precision 8.5-inch length suits a broad range of small-block and big-block engine applications.
• 5/16" Diameter: 0.080" wall thickness balances strength with minimal weight for efficient valve train operation.
• DNA Engineering: Purpose-designed geometry optimizes pushrod angles and reduces harmonics for extended component life.

Specifications

Ideal Applications

• Small-block Chevrolet engine builds requiring durable, precision valve actuation
• Big-block performance and racing engines with aggressive valve lift
• Street and strip drag racing applications with high RPM demands
• Engine rebuilds and performance upgrades prioritizing valve train reliability