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No Springs Required (NSR) Stage 1 Grind for 6.4L Apache. Awesome across the board power increases. For 6.4L ONLY. Best choice for street cars. Requires Phaser Limiter (#5761) or Phaser Lock (#5760)
The Stage 1 HRT Camshaft for 6.4 HEMI features:
- Low Shock Technology lobes that reduce valvetrain shock and are easy on springs, allowing higher RPM, improved durability and reduced load loss.
- Micro Surface Enhancement finishing technology increases load bearing area