ProMaxx Performance Project X Assembled Aluminum Cylinder Heads for Small Block Ford (210cc)
723-9208
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210cc Intake Runner
ProMaxx 9208 Project X Aluminum Cylinder Head Features:
- Fully assembled with valve springs, steel valve spring retainers, Viton valve seals, 3/8 in. rocker arm studs, and guide plates
- Valve springs for use with a solid roller camshaft with a maximum valve lift of .700 in.
- Cast from 356-T6 ultra-smooth aluminum with larger valve spring pockets and runners designed to be both accurate and precise.
- Uses a 14mm .750 in. reach spark plug such as NGK R5671A-7 (sold separately) or equivalent.
- One-piece 21-4N stainless steel valves are back-cut and swirl polished to promote airflow and are installed in diamond-honed manganese bronze guides.
- Combustion chambers with unshrouded, hardened steel valve seats that feature a competition 5-angle valve job.
- Fully assembled set of 2
Specifications:
What’s best cam for these heads in 357winsot
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