BBC Ultra-Pro Mag Roller Rocker Arm Set 1.8 Ratio

The BBC Ultra-Pro Mag Roller Rocker Arm Set 1.8 Ratio is designed for Big Block Chevrolet engine builders and performance enthusiasts who require optimal valve control and efficiency. This roller rocker arm set is an excellent replacement for worn or stock rocker arms on BBC heads, ensuring the precision geometry necessary for high-RPM builds where reliable valve actuation is crucial.

The 1.8 ratio specification allows each rocker to multiply pushrod motion by 1.8 times at the valve stem, enhancing valve lift and duration characteristics throughout the engine's operating range. The roller rocker arms utilize ball-bearing races instead of traditional sliding friction surfaces, significantly reducing wear and heat generation under load. Constructed from premium ductile iron, these rocker arms are precision-machined to ensure consistent performance and longevity.

Ideal for applications with aggressive valve spring pressures and elevated RPMs, this rocker arm set fits BBC cylinder heads and is perfect for both street and racing environments. Proper installation requires careful alignment and verification of pushrod length to ensure optimal performance. With its robust design, the BBC Ultra-Pro Mag Roller Rocker Arm Set is a reliable choice for any serious engine builder.