Precision Oversize Exhaust Valve Guide

When performing a cylinder head rebuild on a Honda B-Series engine, achieving the correct valve guide-to-stem clearance is critical. The GSC Power Division Manganese Bronze Exhaust Valve Guide with a +.003in outer diameter (OD) is the ideal solution for heads that have been machined to accommodate slightly larger guide bores.

Why Choose Manganese Bronze?

• Superior Wear Resistance: Manganese bronze offers exceptional longevity under high-heat conditions.
• Thermal Efficiency: Improved heat transfer away from the valve stem to the cylinder head.
• Precision Machining: Tight tolerances ensure consistent performance and reduced valve chatter.
• Oversize Fitment: The +.003in OD allows for a perfect press-fit in machined or worn cylinder head bores.

This single guide is designed for enthusiasts and machine shops requiring specific sizing to restore factory-spec clearances or improve upon them for high-performance applications. By utilizing high-quality manganese bronze, you significantly reduce the risk of valve guide wear, ensuring your B16A, B17A, or B18C engine remains reliable under stress.

For all your precision engine internal requirements, look no further than GGCRACING.