Supertech Honda LS / H23 Series Manganese Bronze Intake Valve Guide 6.6mm Stem - Set of 8

GDE-H66-I-8

Notes: These Supertech valve guides are engineered for use on the intake side of the cylinder head.

Premium Valve Guide for Acura B18B

Supertech Valve Guides are precision-machined from high-quality Manganese Bronze material to ensure exceptional durability and dimensional stability. Designed specifically for Acura B18B applications, these guides are built to withstand the rigors of both performance street use and full-on racing environments.

Engineered to work in perfect harmony with Supertech’s low-friction black nitrided valves, our valve guides provide optimal fitment, reduced wear, and outstanding long-term reliability. For high-powered setups where exhaust temperatures are extreme, we offer copper alloy guides with up to 3x higher thermal conductivity compared to Manganese Bronze — ideal for improved heat dissipation in forced induction engines.

No matter your performance needs, Supertech delivers the right valve guide solution — precision-made, race-proven, and ready for peak output.

Features

• Precision-machined for exact fit in Acura B18B cylinder heads
• Manganese Bronze construction for intake and standard-duty exhaust use
• Optional copper alloy for high-powered exhaust valve applications
• Compatible with Supertech black nitrided valves for low friction and extended life
• 46.5mm overall guide length for proper valve alignment

Benefits

• Improved heat management and wear resistance
• Increased engine longevity under high stress
• Reliable performance at high RPM and temperature extremes
• Supports tight valve clearances and consistent valve motion
• Ideal for NA, turbocharged, or supercharged engines

• Specs	Engine
  Outer Diameter	12.07mm
  Length	46.5mm

• Make	Engine
  Acura	B18A
  Acura	B18B
  Honda	B20
  Honda	H23A DOHC Non-VTEC