Supertech Performance GDE-NSR6-I-OS-8 Manganese Bronze Intake Valve Guide Oversize 6mm Stem

Supertech Performance valve guides are precision-machined from high-quality manganese bronze material, designed specifically for Nissan SR20DET and RB26DETT engines. This oversize outer diameter version is engineered for cylinder heads that have been machined or have worn valve guide bores beyond standard specifications, providing a perfect solution for engine rebuilds and performance applications.

Key Features:

• Manganese bronze construction for superior durability and heat resistance
• Oversize outer diameter for machined or worn cylinder heads
• 6mm inner diameter valve stem compatibility
• Intake side application only
• Designed to be used in combination with Supertech's black nitrided valves for optimal performance and durability
• Precision-machined to tight tolerances for proper valve stem clearance

Supertech provides the racing market with superior valves and valve train components for virtually every type of racing, including drag racing, rally, and road racing. These oversize valve guides are essential components for high-performance engine builds where standard guides no longer provide the proper press-fit in the cylinder head. The manganese bronze material offers excellent wear characteristics and thermal stability under demanding racing conditions.

Applications: Compatible with Nissan SR20DET, SR20DE, and RB26DETT engines when oversize valve guide bores are present. Commonly used in Nissan 240SX, 180SX, 200SX, Sentra SE-R, Infiniti G20, and Nissan Skyline GT-R builds.