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Have not seen a 454 with a 10.2 deck. have seen a 427& 366 10.2 truck blocks that have a 3.76 stroke crank, 454 should be a 4.00 stroke crank. The cranks are the same in a short deck 8.2 and a tall deck 10.2 the difference is made up in piston height and # of rings on piston. Not seen a stock 4.250 stroke crankshafts.
Heads off a 454 engine will not fit a 305 engine A 454 is a big block and a 305 is a small block. Even if they did fit it would probably run poorly due to low compression because the combustion chambers on the the 454 heads are larger than the ones on the 305 heads
The 1979 454 engine has 255 horsepower. This engine was frowned upon by most gear heads due to leaks and a weak head.
A 1995 454 engine normally found in Chevy Suburban's produced exactly 230 horsepower and 385ft-lbs torque in stock form.
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.
You should be able to. The 454 came stock in the '74 which is the same body style.
70 nova's never had a 454 in them and the horsepower rating would have to be assessed from the year the engine is and if anything has been done to the engine other than being stock.
400 small block 2brl was the basic engine with a 454 big block optional
A stock 454 7.4L is around 330HP, but you can have one ramped up with performance parts to be as high as 750HP.
I think the truck block has taller deck height but if rare I think can be machined to fit. Talk to engine builder before you buy.
What exactly is your question? Which vehicle came stock with a 454? Several. There was a Corvette which came with one, I believe post or prior to 1970. There was also a Kingswood estate wagon with a 454, 1973, there may have been other years which this engine was available for this car. There was also a 454 SS chevelle, 70, 71? I also remember a larger truck with this engine, and maybe a pickup or 2. A popular pulling and racing engine. Should be widely available. Some, especially the all aluminum 454 rat, L88, are awesome.