Description
- Designed for 88 to 96 inch engines with compression ratios from 10 to 10.5:1 and 100 and 107 inch engines at 9.7:1 to 10.5:1 compression
- For 2006 Harley-Davidson® Dyna® and 2007-'16 big twin models
- Can be used with stock valve springs
Fitment
Returns & Warranty
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Returns are accepted within 45 days of delivery if unused and in original packaging. View Return Policy.