How much horsepower does a 455 HO have?
How much horsepower does a 455 HO have?
Rated conservatively at 360 horsepower and producing a tremendous 500 pound-feet of torque, the 455 HO gave the GTO the powerful aggression needed to appeal to performance-minded buyers.
What is a 455 ho?
The 1970 ‘455 HO’ was a conventional “D” port engine. It was rated at 360 hp @4300 RPM in the GTO and 370 @ 4600 RPM in the Grand Prix and other full-size Pontiacs.
Is the Pontiac 455 a good engine?
Despite only two years in production run, the 455 H.O. is regarded by many Poncho experts as the most versatile street engine Pontiac ever produced. Gobs of low-rpm torque make it quite responsive in normal driving conditions, and it can instantly turn tires into a smoky haze by standing on the throttle.
What is a 455 Super Duty?
In 1973 and 1974, the 455 was offered as a special version called the Super Duty 455 (SD-455). This model was unique because it consisted of a strengthened cylinder block including four-bolt main bearings along with added material in different locations for additional strength.
What is Pontiac’s biggest motor?
The 455-cu.in. V-8 debuted in 1970 and was the largest displacement Pontiac engine ever built for the street.
What is the fastest Pontiac Firebird?
Black Line Fever: 283 mph with Gale Banks. At the Bonneville Salt Flats, there’s a 5-mile-long black line that’s seen Pontiacs from Mickey Thompson’s four-engine Challenger 1 to the hand-down fastest Firebird of all: the Banks/Pontiac Twin Turbo GTA.
How fast does a Pontiac Firebird go?
Performance
| 0 – 100 kph | 9.0 s |
|---|---|
| 0 – 60 mph | 8.7 s |
| Top speed | 224 kph (139 mph) |
How much horsepower does a new Pontiac Firebird have?
The new Pontiac Firebird packs a lot of power and speed. Its V8 engine outputs up to 840 hp (over four times the power of the 1977 Pontiac), its top speed is 200 mph, and it will do 0 to 60 in less than three seconds!
How much horsepower does a 455 big block have?
Oldsmobile 455 V8 Big Block Offering between 310 and 400hp, and pushing out a spectacular 500 lb-ft of torque, the 455 big block was most famously used in the 442 muscle car.
What was the last year for the ho455 in the Firebird?
This was also the last year for the HO455 engine in the Firebird and GTO. This 1972 Pontiac Firebird Formula HO455 is a rare bird with only 276 produced. According to the seller, this car was pulled off the line and given to Jim McDonald as his personal vehicle for the first 9 months of 1972.
How much horsepower does a 1972 ho455 engine have?
The heart of this grand touring vehicle is the famous HO455 engine. In 1972, the engine was rated at 300 net horsepower which compares favorably with the prior-year gross rating of 335 horsepower. This car has lots of torque and is fun to drive.
How much horsepower does a 455 HO Trans Am have?
In fact, the 455 engine in the ’75 455 HO Trans Am was identical to the 455 engine you’d get if you ordered a ’75 Catalina station wagon. Compression ratio was 7.6 to 1. It had no special internal components whatsoever and was rated a measly 200 hp at 3,500 RPM and 330 lb.ft. of torque at 2,000 RPM.
What is the 455 HO package on a Ford Mustang?
In addition to the 455 HO engine, the package contains a four-speed floor-shift transmission, 3.23 performance axle ratio, specifically tuned exhaust system with twin exhaust splitters, semi-metallic front disc brakes and special 455 HO hood shaker decal. The new option package will be available in all states except California.