Is a 79 half ton 350 turbo the same as 78 Caprice Classic Turbo?

No, a 1979 half-ton truck with a 350 engine (regardless of whether it has a turbocharger or not) is not the same as a 1978 Caprice Classic. They are entirely different vehicles.

* 1979 Half-Ton Truck: This refers to a light-duty pickup truck, likely a Chevrolet or GMC. The engine would be installed in a truck chassis and body.

* 1978 Caprice Classic: This is a full-size passenger car, a sedan or station wagon. The engine and drivetrain would be part of a completely different chassis and body structure.

Even if both had a 350 cubic inch engine (a popular engine for both vehicles in those years), the specific engine details would likely differ. Factory turbochargers on 350s were not common in those years. The existence of a turbocharger would indicate an aftermarket modification. And finally, even with identical engines, everything else is completely different.