Is a vortec v6 96 Chevy blazer interchangeable with 307 v8 84 olds cutlass supreme?
No, a Vortec V6 from a 1996 Chevy Blazer is not interchangeable with a 307 V8 from a 1984 Olds Cutlass Supreme. They are completely different engines with different mounting points, bell housings, and accessory placements. Even the basic dimensions and overall design are too dissimilar for a direct swap. You'd need extensive modifications, likely including a custom engine harness, transmission adapter, and potentially modified mounts, making the swap impractical and very costly.