Dart 63121205 Valve Guide 11/32 Inch 3.000 Inch Length Manganese Bronze

The Dart 63121205 is a precision-engineered valve guide designed for high-performance engine building and cylinder head rebuilding applications. This valve guide is manufactured from premium manganese bronze material, offering exceptional wear resistance and durability in demanding racing and performance environments.

Key Specifications:

• Valve stem diameter: 11/32 inch (0.344 inch)
• Overall length: 3.000 inches
• Outside diameter (OD): 0.502 inch
• Material: Manganese Bronze (MB)
• Application: Intake and exhaust valves
• Finish: Natural bronze

Performance Features:

• Manganese bronze construction provides superior wear resistance compared to standard materials
• Precision-machined to exact tolerances for optimal valve stem clearance
• Designed for extreme racing applications and high-performance builds
• Compatible with popular Dart cylinder heads and custom engine builds
• Sold individually for flexibility in rebuilding projects

Dart Machinery has been a trusted name in performance engine components since 1981, and their valve guides are built to the same exacting standards as their renowned cylinder heads and blocks. These guides are ideal replacements for worn guides in performance cylinder heads or for custom engine builds requiring specific dimensions.