What was the horsepower rating for a 1978 Chevy 350 ci truck engine?

You're going to need to be more specific! The 1978 Chevy 350 ci engine was offered in various configurations, each with its own horsepower rating.

To find the specific horsepower rating for your 1978 Chevy 350 ci truck engine, you'll need to know:

* Engine code: This is a 2- or 3-letter code stamped on the engine block. It will tell you the specific engine configuration.

* Carburetion: Was it a single or double-barrel carburetor?

* Transmission: Was it a manual or automatic transmission?

Once you have this information, you can consult a resource like:

* The 1978 Chevrolet truck owner's manual: This will have the specifications for your specific engine.

* A website like ChevyTalk or AutoZone: These websites offer detailed engine information based on the engine code.

* A local mechanic or parts store: They can use your vehicle's VIN (Vehicle Identification Number) to look up the specific engine configuration.

Let me know if you can provide the engine code or any other details. I'll be happy to help you find the horsepower rating.