
- Fully CNC ported
- 6-bolt-per-cylinder bolt pattern
- LS7–style rectangle port design
- 12° valve angle
- minimum 4.100" bore
- 70cc “as-cast” combustion chambers
- Uses LS7 rocker arms/LS7 bolts
- 397 cfm@.700" intake, 230 cfm@.700" exhaust
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info@partsworldperformance.com