Stage V Millennium Heads
The ultimate raised port hemi cylinder head. Designed with Pro-Stock style intake ports that direct the intake charge at the bottom of the cylinder, not at the exhaust valve. It uses long 6 inch intake valves and a smaller 149cc combustion chamer. This design has a shorter flame front and uses much lighter pistons.
The features of this hemi head include:
- Special billet rocker stands
- Allows the use of factory/stock rockers
- Standard rocker covers - but requires longer spark plug tubes
- Uses late 'Pro-GM' style bolt pattern for fabricated intake maniforlds, stock style 16 bolt intakes must use an adapter plate
Optional head porting is available with data recorded on SuperFlow 600 flowbench. These hemi heads are capable of 500CFM plus.
FHO Specifications:
- Intake 2.40" 11/32" stem
- Exhaust 1.90" 5/16" stem
- Chamber volume 149CC