You can keep the st crank , use PEK rods and Pistons either Acculite , JE or Cp and brace of 48,s Tony Law manifold or Similar.

The rest of it is in the head if it was me id use Harris Race Engines there right up there in the Pinto and Crossflow builds.

Last time i got a quote for a head to support 180-200 hp it was around the 1500 mark that was complete ..... witch i thought was ok ...