Overview
The HPI Racing Under Head is a genuine HPI replacement engine component for compatible HPI nitro engines. The under head shim sits between the cylinder head and engine block, helping set proper combustion chamber compression and engine tuning.
Key Features
- Genuine HPI replacement part
- Engine under head shim
- OE-grade quality
Performance Benefits
- Restores proper engine compression
- OE-grade fitment
- Critical for engine tuning
Usage Notes
- Best used during HPI nitro engine service or rebuild
- Verify compatibility with your specific engine variant
- Follow HPI installation procedures for correct compression
Technical Specs
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Type: Engine Under Head
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Application: HPI nitro engines
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Manufacturer: HPI Racing
Fitment
- Refer to your HPI engine's parts manual for compatibility
What's Included
- HPI Racing Under Head (as packaged by HPI)
Summary
The HPI Racing Under Head is the genuine OE replacement engine shim for restoring proper compression and tune on compatible HPI nitro engines.
