The Pro 2 cylinder heads were designed to make competitive engine building easier and less expensive by incorporating the rugged features of our famous Race Series casting into a ready to use, professional quality competition cylinder head. 100% CNC machined on precision 5-axis machining centers, the Pro 2 head offers awesome power and unprecidented ease of use.
Features:
- Premium alloy: Dart aluminum heads are cast from virgin 355-T61 aerospace alloy for superior strength and integrity.
- Bolt on compatibility: 2 degree rolled valve angle and standard spacing accommodates all stock accessories.
- Heart shaped 121cc chambers improve combustion efficiency.
- CNC machined for consistency and power.
- Raised spark plug location improves flame travel for a quicker, more complete burn, producing more power.
*Multi-angle intake seats and radiused exhaust seats greatly improve air flow. - Hardened exhaust seats are compatible with unleaded gasoline.
- Brass head bolt tubes are inserted between adjacent intake runners to allow the ports to be widened.
- Spark plug holes are machined for gasketed 3/4 reach plugs.
- Manganese bronze valve guides ensure long term reliability.
- All cylinder heads sold individually.
Application:
