What is the difference between a 454 Chevy truck engine and a 454 Chevy car engine?

Answer 1

I don't think there's a difference, I base my answer on we removed a 454 from a 82 Chevy Suburban on the engine under the timing cover embossed on the front of the engine, "Hi-Perf, Pass. Hope this helps. There's a difference...... Light Truck and Passenger Car engines are the same. Medium and Heavy Duty GM Trucks use a tall deck block. The distance from the crank center line to the top of the cylinders is .4" taller than the short deck block. The block is beefier and the cam is raised. Most parts are interchangeable and one will bolt in place of the other. The tall deck block is taller and wider than the short deck so there are clearance issues when installing in a car. They are commonly used in drag racing because the thicker cylinder walls and the raised cam allow engine builders to bore the cylinders bigger and install longer stroke cranks then can be done on a short deck block.