How much horsepower can you get out of a 402 big block?

The big block of the Chevy has a power output of over 400. The engine’s Torque is 415 pounds-feet at 3,600rpm. The engine can get over 400 horsepower.

How much horsepower does a 72 350 have?

The factory rating for the 4bbl 350 for 1972 was 175 net hp. Basically the exact same motor had a rating of 255 gross hp in 1971 and prior.

How much horsepower does a 454 have?

In staying with the standard bore/stroke combination of 4.25/4 inches, however, it is not uncommon to yield power outputs of greater than 650 horsepower from the 454 in race engine configurations.

How much HP does a 69 350 have?

Instead, a Rochester Q-Jet carburetor came standard. All things considered, the 350 cubic-inch L46 produced 350 HP at 5,600 RPM, and 380 lb-ft of torque at 3,600 RPM.

Is 396 a good motor?

The 396 is a good revving engine, so you’d want to run a steel crank so it would live at the rpm you’d have to run it to make HP. And probably a roller cam, as flat tappet cams in big blocks have a nasty habit of “going away” relatively easily.

How much horsepower does a truck 402 have?

They went on 402’s and 454’s, in trucks, Chevelles, Impalas, Vettes, etc. Horsepower was 270 net in the Vette (about 300-325 gross flywheel – not bad for a low-compression, neo-smog wonder).

How big is a 1972 Dodge truck 402?

The 402 is basically a.031″ over 396. I’m pulling about 500 flywheel HP with my.030″-over 396 with a basic rebuild (forged pistons), ported stock heads, a nice cam, and good intake manifold.

What kind of engine did a 1972 Chevy truck have?

I ran across a 1972 chevy truck with an original 402 big block with a 400 transmission. My only concern is that these engines were so detuned by this time that I may have to spend some serious $$$ to get the power numbers back up.

Is the 1972 402 from a truck worth building?

How sure are you it is a 402bbc I think they only put those is cars and it was basicly a beefed up 396 so it should not have a 2bbl carb it is worth it if its not a 348bbc but as far as that goes I think they where long gone in 72… Click to expand… They called them both “400” in the trucks.