275HP
NEW ANSWER: Stright out of the book. Advertised Horsepower is. 250 HP @ 4000 RPMs.
The 1984 Chevrolet pickup truck with the 454 engine produced around 230-240 horsepower.
The horsepower of a 1991 Chevrolet 454 cubic inch engine ranges between 240 horsepower and 350 horsepower the engine torque ranges between 700 pounds and 850 pounds.
The stock Chevrolet 454 was originally rated at about 250 horsepower. This varies greatly depending on the model and year of the motor.
the 454 out of the chevelle in 73 had 265 horse.
Advertised Horsepower is : 240 HP @ 4000 RPMS The only information I can find is a 1973 454 truck engine. Nothing in 1972
rated 240hp but had about 400 ft lbs of torque
The 1979 454 CI engine from Chevrolet features 245 horsepower as well as 4000 rpms. This figure only covers the V8 version of this engine.
The 1973 model 454 had---250 HP @ 4000 RPM with a 4- bbl carb. After 1973 the horse power went down about 10 HP before 1973 the 454 had 450HP so Chevy said. the 454 actually had close to 500HP
There was 2 different 454 in 1974 , One had advertised 230 HP@4000 RPM And the other had 250 HP@4000 rpm
10w30 in the winter time---- 20w50 in the summer time.
Advertised HorsePower is stright out of A CHILTON manual: And it says that the 1981 454 truck Engine With a 4-barrel has 210 HP. @ 3800 RPMs. The 1985 and 86 year 454 had 230 HP. @ 3800 RPMs. From 1984 down to 1979 454 engines had 210 HP @ 3800 RPMs.
The 1973 model 454 had---250 HP @ 4000 RPM with a 4- bbl carb