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Speedmaster harmonic balancers are crafted from high-quality steel and feature a tuned elastomer for optimal engine performance
Superior engineering
and are available in chrome or cast aluminum
All rockers feature large needle bearings and roller tips
This feature is sometimes called an air gap design
Pontiac 455 OEM 2 Bolt to 4 Bolt Straight Billet Steel Main Caps Speedmaster harmonic balancers are craftedSpeedmaster billet main caps are precision CNC machined from superior quality 1025 billet steel. These extreme main cap sets consist of the center three caps. Speedmaster billet main caps improve reliability in highly stressed engines by reducing distortion of the main bearing bores, and increasing the cap's resistance to closing up under high loads.
