Aussie modder,

If you're going to turbo it then best to use Cosworth management and cosworth inlet/exhaust manifolds. The pinto bottom end is fine for this conversion, and you can retain the entire pinto bottom end. I would recommend changing pistons though as the pinto piston ring pack is very thick and not ideal in turbo applications. If you are keeping with pinto pistons, try to source a transit bottom end as these are lower compression height pistons and are ideal for turbocharging up to 250bhp!