**Built-To-Order. Please email and confirm delivery ETA before ordering**
The Menace90 SS Engine! 42mm Stroker Crank
Upgrades:
- 52mm Bore x 42mm Stroke
- CNC Smolik Head
- Balanced Crank
- PGN 6202 Main Bearings
- Viton Crank Seals
Does NOT include intake, sold separately.
Optional: Porting the cylinder, cleaning up the ports, and adjusting port timing. Additional 2-4 week lead time.
Important Notes
- All engines are shipped with large squish (1.0-1.4mm) to ensure safety when first tuning. You may adjust squish for increased power but be aware this will cause extra wear and tear on the bottom end. DO NOT go below 0.8mm squish.