Description
Spark plug indexing directly impacts ignition timing precision and combustion efficiency—even small gaps or misalignment can hurt performance. Moroso’s tapered seat washers ensure consistent, repeatable spark plug seating across multiple cylinder heads and engine builds. Whether you’re tuning a race engine or maintaining critical ignition geometry, these washers eliminate guesswork and deliver the reliability that separates winning setups from guessing games.
Technical Specifications:
- Spark plug washers
- Indexing design
- 14 mm tapered seat
- Three thickness options: 0.010″, 0.021″, 0.032″
- Set of 30 washers
- Precision CNC-manufactured
- Moroso part #71900
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