FX Engines Engine Head Shim 16.4X22.8X0.15 (4)

The FX Engines Engine Head Shim 16.4x22.8x0.15 (4) is a genuine replacement pack designed to fine-tune head clearance and compression in nitro engines. Each 0.15 mm shim offers precise, repeatable adjustments to help maintain consistent performance during servicing and rebuilds. Part number FX655921.

Key Points

• Genuine FX Engines part: FX655921
• Pack of four precision shims
• Dimensions: 16.4 mm inner diameter x 22.8 mm outer diameter x 0.15 mm thickness
• Helps set head clearance and compression in nitro engines
• Use singly or stack to achieve desired settings
• Ideal for routine maintenance and rebuilds

Usage Guidance

• Measure current head clearance and follow your engine manufacturer’s setup recommendations.
• Re-check clearances after installation and heat cycles.
• Select shim combinations to match your tuning goals and running conditions.