| Engine Castings | |||||
| Part# | Quan | Description | Material | Reference | Status |
| HC100 | 2 | Crankshaft Counterweight | Iron or Steel | Eng Des I | Mold in Progress |
| HC101 | 1 | Crankcase | Iron or Steel | Eng Des I | Mold in Progress |
| HC102 | 2 | Crosshead Guide | Steel | Eng Des I | Mold in Progress |
| HC103 | 2 | Main Bearing Cap | Iron or Steel | Eng Des I | Mold Complete |
| HC104 | 1 | Left Cylinder | Iron or Steel | Eng Des III | Mold in Progress |
| HC105 | 1 | Right Cylinder | Iron or Steel | Eng Des III | Mold in Progress |
| HC106 | 1 | Left Exhaust Manifold | Iron or Steel | Eng Des IV | Mold in Progress |
| HC107 | 1 | Right Exhaust Manifold | Iron or Steel | Eng Des IV | Mold in Progress |
| HC108 | 2 | Connecting Rod | Steel | Eng Des V | Mold in Progress |
| HC109 | 2 | Connecting Rod Bearing Strap | Steel | Eng Des V | Mold in Progress |
| HC110 | 4 | Connecting Rod Bearing Half | Bearing Bronze | Eng Des V | Mold in Progress |
| HC112 | 2 | Rocker Arm | Iron or Steel | Eng Des VI | Pattern Complete |
| HC113 | 2 | Valve Stem Head | Steel | Eng Des VI | Pattern Complete |
| HC114 | 2 | Reversing Link | Iron or Steel | Eng Des VI | Pattern Complete |
| HC116 | 2 | Reversing Link Hanger | Steel | Eng Des VII | Pattern Complete |
| HC118 | 2 | Inner Eccentric Strap | Bearing Bronze | Eng Des VIII | Pattern Complete |
| HC119 | 2 | Outer Eccentric Strap - Upper Half | Steel | Eng Des VIII | Pattern Complete |
| HC120 | 2 | Outer Eccentric Strap - Lower Half | Steel | Eng Des VIII | Pattern Complete |
| HC121 | 4 | Eccentric Rod | Steel | Eng Des VIII | Pattern Complete |