| PART # | MAKE | ENGINE | MATERIAL | MAIN SEAL | BALANCE | SNOUT | STROKE | LENGTH | JOURNAL | WEIGHT | TECH NOTES |
| 77-350-4000-600-2 | Chevy | 350 | Forged 4340 Steel | 2-Piece | Internal | Big Block Chevy | 4 | 6 | 2.1 | 44 | Internal Balance |
| 77-350-3875-600-2 | Chevy | 350 | Forged 4340 Steel | 2-Piece | Internal | Big Block Chevy | 3.875 | 6 | 2.1 | 44 | Internal Balance |