Covered in red oxide primer, the J code on the cowl tag tells us the original color was Verde Green metallic. The cowl tag also displays body style code 4367, proof that this ragtop stripper was born with the 155hp, 225ci V-6 mill. If we'd seen code 4467, it'd be a V-8 car. Unfortunately, in 1965 the cool Gran Sport 400 muscle car package was an option group atop the Skylark V-8. The groovy GS wouldn't get its own body style code until 1966, when it became a distinct model unto itself. This makes verification of real-deal '65 GS 400 Skylarks a hassle today.