How much horsepower does a 1973 Trans Am have?
For extra insurance, the engine is assembled with generous clearances. Also, an 80 psi oil system is on hand to keep the lubricant flowing while the engine pumps out all its horsepower. And that power flows off the crankshaft in astounding quantities, an impressive total of 310 net horsepower.
What year Trans Am had the most horsepower?
1969
The 1969 Firebird Had the Highest Horsepower With this engine installed, it delivered 345 horsepower, higher than any other Firebird that came after it.
How much horsepower does a Trans Am 455 Super Duty have?
Powertrain specs
| Engine type | Pontiac Big Block V-8 455 Super Duty |
|---|---|
| Power | 314 ps (310 bhp / 231 kw) @ 4000 rpm |
| Torque | 529 Nm (390 lb-ft) @ 3600 rpm |
| Power / liter | 42 ps (42 hp) |
| Power / weight | 186 ps (183 bhp) / t |
How much horsepower does a 1973 Pontiac 455 have?
Horsepower and Torque In 1973, a 250-horsepower 455 with 370 foot-pounds of torque surfaced along with a 455 Super Duty, which provided 310 horsepower and 390 foot-pounds of torque.
Which Pontiac GTO was the fastest?
The Hendrix 8.8 has worked out well.” So well in fact, that Frank and Walt currently hold the record for the fastest and quickest IRS GTO in the country, running consistent 1.41 short times on their way to some blisteringly fast 9.11 quarter-mile times at 153 mph.
How much horsepower can you get out of a 455 Pontiac?
Horsepower and Torque The 455 High Output generated 335 horsepower and 480 foot-pounds of torque for 1970 and 1971. However, power steadily declined beginning in 1972 when Pontiac reduced it to 300 horsepower and 415 foot-pounds of torque.
What kind of car was the 1973 Pontiac Trans Am?
1973 Pontiac Trans AM A true survivor, unrestored 1973 Trans Am Super Duty. This is a numbers Refine Search?
How much does a 1973 Firebird Trans Am cost?
1973 Pontiac Firebird Trans Am Very well maintained Trans Am with a complete professionally rebuilt motor calibrated to 455… $48,000
What kind of engine was in a 1973 Pontiac Firebird?
However, it seems the folks over at Pontiac didn’t get the memo. For 1973, Pontiac introduced a version of the 455 cubic-inch V8 called the Super Duty or SD-455. This engine was hand-built with a heavy duty block, forged aluminum flat top pistons, and Rochester 800 cfm four-barrel carburetor.
What was the Super Duty on a 1973 Firebird?
Pontiac brass almost killed the Super Duty entirely. Pontiac sales literature from 1973 stated the Super Duty would be optional on several Pontiac models, including the Firebird, LeMans, and Grand Am models. Stock photography was even created showing SD-455 badging on the 1973 Grand Am.