This is a new old stock auto part NOS new gm vacuum advance in old original gm box this is a distributor vacuum advance assembly shows as fitting 1974 chevrolet truck models with v-8 4 barrel engines GM part # 1973452 Delco d1381A
listed as fitting
- 1974 Chevrolet truck series 20 30 with 350 454 v8 4bbl
