| 101-289 | SHORT BLOCK - assembly | 1 | |
| 1 | 12-387 | BLOCK - cylinder | 1 | |
| 2 | 55-4037 | SCREW - cover | 2 | |
| 3 | 55-4038 | FLATWASHER - copper | 2 | |
| 4 | 11-912 | COVER - valve | 2 | |
| 5 | 33-325 | GASKET - cover | 2 | |
| 6 | 55-786 | PLUG - expansion | 1 | |
| 7 | 30-109 | KIT - rear bearing plate gasket | 1 | |
| 8 | 11-1187 | PIN - crankshaft bearing stop | 4 | |
| 9 | 11-2556 | WASHER - thrust | 2 | |
| 10 | 11-3152 | BEARING - crankshaft (std) | 2 | |
| 11-3175 | BEARING (0.010 us) | 2 | |
| 11-3176 | BEARING (0.020 us) | 2 | |
| 11-3177 | BEARING (0.030 us) | 2 | |
| 11 | 11-2045 | PLATE - bearing | 1 | |
| 12 | 11-5396 | BRACKET - timing (rear bearing plate) | 1 | |
| 13 | 11-2658 | SEAL - oil | 1 | |
| 14 | 55-4033 | SCREW - plate | 5 | |
| 15 | 55-790 | LOCKWASHER | 5 | |
| 16 | 11-1168 | INSERT - intake valve seat (std) | 2 | |
| 11-4452 | INSERT (0.005) | 2 | |
| 11-4453 | INSERT (0.010) | 2 | |
| 11-4454 | INSERT (0.025) | 2 | |
| 17 | 11-1170 | INSERT - exhaust valve seat (std) | 2 | |
| 11-4449 | INSERT (0.005) | 2 | |
| 11-1171 | INSERT (0.010) | 2 | |
| 11-1166 | INSERT (0.025) | 2 | |
| 18 | 11-254 | TAPPET - valve | 4 | |
| 19 | 11-1153 | LOCK - valve spring retainer | 8 | |
| 20 | 11-1173 | ROTOCAP - exhaust valve spring | 4 | |
| 21 | 11-1018 | SPRING - valve | 4 | |
| 22 | 11-1174 | GUIDE - valve | 4 | |
| 23 | 11-1220 | VALVE - intake | 2 | |
| 33-1458 | GASKET - intake valve guide | 2 | |
| 24 | 11-1160 | VALVE - exhaust | 2 | |
| 25 | 33-375 | GASKET - cylinder head | 2 | |
| 26 | 11-5672 | HEAD - cylinder (right, No. 2 cylinder) | 1 | |
| 11-5673 | HEAD - cylinder (left, No. 1 cylinder) | 1 | |
| 27 | 55-1847 | WASHER | 18 | |
| 28 | 55-2772 | BOLT - head | 8 | |
| 55-2773 | BOLT - head | 18 | |
| 29 | 11-2301 | TUBE - oil | 1 | |
| 30 | 55-4034 | PIN - gear cover align | 2 | |
| 31 | 11-2660 | BEARING - camshaft | 1 | |