Photos shown for illustration; shade and shape may differ slightly.
Skunk2 Ultra Stage 4 Camshafts for Honda K20A, K20A2, K20Z1, K20Z3 and K24A2 (3-lobe VTEC) Engines
Supplier stock
Skunk2 Ultra Stage 4 camshafts are built for heavily modified K-series engines. They have a forged tool steel three-lobe core and move peak power higher in the rev range.
Specifications
| Brand | Skunk2 Racing |
| Code | 305-05-7040 |
| Material | forged tool steel, three lobes |
| Intake | lift 15.11 mm, duration 280 degrees at zero lash |
| Exhaust | lift 14.6 mm, duration 283 degrees at zero lash |
| Centerline (intake / exhaust) | variable / 111 degrees |
| Valve clearance (intake / exhaust) | 0.2 / 0.25 mm |
Which cars it fits
- Honda K20A, K20A2, K20Z1, K20Z3 and K24A2 (3-lobe VTEC) engines
What to check
- For turbo applications Skunk2 recommends the 311-05-7380 Pro XP springs.
- Primary lobe: 11.43 mm lift on intake and exhaust; VTEC lobe: 15.24 mm intake, 14.86 mm exhaust.
- Requires: Pro Series valve springs (311-05-5380), titanium retainers (308-05-0410).
- Skunk2 recommends: Pro cam gear, exhaust only (304-05-0275), Pro cam gear set, intake and exhaust (304-05-0300).