Replacement Engine GM262 4.3L V6 - 1987-92

1-piece rear oil seal. Roller Cam Engine, timing cover fastened with 10 bolts. Intake manifold with 12 bolts. 175 to 205 PS
Engine block number/ending number: 14093611,10105867,10066011,*756,*256,*073,*683,*061
Cylinder head number/ending number: 14131996,14094768,*107, *476, *103, *066