Seen in silhouette, the ’90s OBS Fords share a lot with the trucks that came before them, ... This was the final big-block V-8 ever offered by Ford in a pickup truck. Photo: Ford Heritage Vault.

Ford’s famous, unkillable 300 I-6 engine ended pickup production with the OBS trucks. The first Ford F-150 SVT Lightning appeared in 1992 as an OBS pickup. Photos by MotorTrend staff ...