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🇨🇦 Proudly Canadian! All orders ship from Canada. No Tariffs. No hidden fees. No surprises.


SKU: SKU: XF391B
Profile: 391.
Application: 1300 Stockrod.
Unit Type: Blank.
This is the hottest profile that can be installed without machining.
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| Weight | 3 kg |
|---|---|
| Application | Race |
| Power Band | 3000-7000 |
| Duration Inlet | 296° |
| Duration Exhaust | 296° |
| Valve Inlet Lift | .440" 11.18mm |
| Valve Exhaust Lift | .440" 11.18mm |
| Timing Inlet | 38 - 78 |
| Timing Exhaust | 78 - 38 |
| Full Inlet Lift | 110° |
| TDC Inlet Lift | .104" 2.64mm |
| TDC Exhaust Lift | .104" 2.64mm |
| Valve Inlet Clearance | .018" .45mm |
| Valve Exhaust Clearance | .018" .45mm |
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