Hamilton Cams Stage 4 207/220 steel billet drag-strip and sled-pull camshaft for 1989-2018 Cummins. Requires ported head and .100″ flycut pistons.
Stage 4 207/220 Steel Drag/Puller Camshaft
Hamilton Cams' most aggressive cam — engineered for serious drag racers and sled pullers running ported heads, flycut pistons, and large single or compound turbo setups. This steel billet grind delivers explosive 2,000-4,800 RPM power when paired with the right supporting modifications.
Specifications
- Duration at .050″ lift: 207° intake / 220° exhaust
- RPM range: 2,000 - 4,800 RPM
- Material: Steel billet
Applications
- Aggressive drag racing
- 2.5 Class and higher sled pulling
- Ported cylinder head with larger valves
- Large single or compound turbo setups
Required Modifications
- 0.100″ flycut pistons (mandatory)
- Higher-flowing ported cylinder head
- Steel tappets/lifters (required for steel cam)
- Block must be machined for cam bushings
- Upgraded heavy-duty pushrods
- Performance valve springs (103# minimum)
- 2,500 RPM stall converter on automatic transmissions
- .080″ valve reliefs on 24V / .100″ on 12V
- 12V applications require electric lift pump (no mechanical lift pump lobe)
- 6.7L applications require EGR delete or non-functioning EGR
Notes
Not legal for sale or use in California. For racing and off-highway use only.
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