Will a ford 351 engine fit in 1984 Chevy s10?
No, a Ford 351 engine will not easily fit in a 1984 Chevy S10. The engine bay of the S10 is significantly smaller than what's needed to accommodate a large-block Ford 351. You'd need extensive modifications, likely including custom engine mounts, firewall modifications, and potentially even frame modifications. The project would be extremely complex and costly, far beyond a simple swap.