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S&S cycle; .640 EVO style cam:
S&S cycle; .640 EVO style cam:

S&S cycle; .640 EVO style cam:

Regular price
$225.95
Sale price
$179.95
Unit price
per 
Shipping calculated at checkout.


  • 640 Cam:
  • For large displacement motors with compression ratios of 10.5-11.5:1 or smaller motors with 11:1-12:1 compression ratio
  • Does not require as much compression as the 631 and provides a more linear power delivery
  • 3,000-6,000rpm
  • **Requires high-lift springs and normal clearance checks**