| 1975-1976 | Oldsmobile | Omega | 4.1L/250 | OHV L6 | Chevrolet | With integral intake head. with Late rear main seal. |
| 1975-1976 | Oldsmobile | Cutlass Supreme | 4.1L/250 | OHV L6 | Chevrolet | With integral intake head. with Late rear main seal. |
| 1975-1976 | Pontiac | Firebird | 4.1L/250 | OHV L6 | Chevrolet | With integral intake head. with Late rear main seal. |
| 1975-1976 | Pontiac | LeMans | 4.1L/250 | OHV L6 | Chevrolet | With integral intake head. with Late rear main seal. |
| 1975-1976 | Pontiac | Grand LeMans | 4.1L/250 | OHV L6 | Chevrolet | With integral intake head. with Late rear main seal. |
| 1975-1976 | Pontiac | Ventura | 4.1L/250 | OHV L6 | Chevrolet | With integral intake head. with Late rear main seal. |
| 1976 | Chevrolet | K20 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976, 1978-1979, 1981-1984 | Chevrolet | G30 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976, 1979 | Chevrolet | P30 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976, 1979-1984 | Chevrolet | G20 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | With integral intake head. with Late rear main seal. |
| 1976-1980 | Chevrolet | C10 Suburban | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1980 | Chevrolet | K10 Suburban | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1982 | Chevrolet | K5 Blazer | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1984 | Chevrolet | C10 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1984 | Chevrolet | C20 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1984 | Chevrolet | G10 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1984 | Chevrolet | K10 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976 | GMC | K25 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1978 | GMC | C15 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1978 | GMC | C15 Suburban | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1978 | GMC | G15 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |
| 1976-1978 | GMC | K15 | 4.1L/250 | OHV L6 | Vin "D" | Chevrolet | w/ integral intake head. w/late rear main seal. |