Something I forgot to post is that as the HEMI and Poly blocks are the same, the information I posted about the oil pans, windage trays, timing cover, water pump conversion, balancer,and pulleys apply whether it's a 301/331/354 HEMI or Poly engine.

Also as far as the brackets I'm building (or the ones Hot Heads sells) they should also interchange between Poly and HEMI motors. The power steering pump bracket mounts to the timing cover and the alternator bracket uses the water crossover bolts to retain it. The AC bracket that I'm building will use 2 manifold bolts and the water crossover bolts on the passenger side.

Even the intake manifold interchanges between the 2 engines.