Horsepower of stock 1986 Chevy 454?

You're going to have to be more specific! A 1986 Chevy 454 could have been in a variety of vehicles, each with different horsepower outputs.

Here's what I need to know to help you:

* What vehicle was the engine in? (e.g. Chevy Silverado, C/K Pickup, Suburban, Corvette, etc.)

* Was it a standard 454 or a 454 with a specific package or code? (e.g. "454 HO", "454 TBI", etc.)

Once you give me that information, I can provide you with the correct horsepower rating.