How much horsepower can a Pontiac 455 make?
A 455 High Output produces 335 horsepower and 480 foot-pounds of torque in each year from 1970 to 1971. A steadily decreasing force decreased the output beginning in 1972, which was at 300 horsepower with 415 foot-pounds as a result.
Is 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 kind of motor was in a Pontiac Grand Am?
V8 engine
The Grand Am could be had with a standard 2-bbl 400 cu in (6.6 L) V8 engine with single exhaust producing 170 hp (127 kW; 172 PS), an optional 4-bbl version of this engine with single exhaust producing 200 hp (149 kW; 203 PS) that was only available with a 4-speed manual transmission, an optional 4-bbl version of this …
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 kind of engine does a Pontiac Trans Am have?
Pontiac announced the availability of a new high-performance package for the Firebird Trans Am. The actual Pontiac press release read: “A new option package featuring a 455-cubic-inch engine will be offered on the Firebird Trans Am starting in May.
What happened to Pontiac’s 455 Super Duty?
At the end of the 1974 model year, sadly, Pontiac announced the dual death of both the great Super Duty 455 engine and the iconic GTO. End of an era? For sure. Then, in the spring of 1975, a small glimmer of hope. Pontiac announced the availability of a new high-performance package for the Firebird Trans Am. The actual Pontiac press release read:
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.
