STOCK Trickflow 225cc CNC Ported Aluminum Cylinder Head SBF 351C/M 400 72cc. This product data sheet is originally written in English. Trickflow PowerPort 225cc fully cnc ported cylinder head for 351C 351M/400 or Clevor Ford engine, TFS-5161T004-C11, with titanium retainers and springs for. 680 max lift big hydraulic roller or small solid roller camshafts. Trick Flow PowerPort® Cleveland 225 cylinder heads feature runners based on the OE Ford 2V design. The exhaust runners are raised. 100 from the stock location to improve the short turn radius and dramatically improve exhaust flow, and a revised oil return system improves oil drain back and includes provisions for mating with Ford 351W blocks.…