Pontiac Trans Am II 455 HO V8 (SAE gross) Coupe
250 kW340 PS335 hp1971
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- Power
- 250 kW 340 PS · 335 hp
- Displacement
- 7,457 cm³
The Pontiac Trans Am II 7.5 455 HO V8 (SAE gross) uses a 7.5-litre eight-cylinder petrol engine rated at 250 kW (340 PS), in coupe form. In the Trans Am II 7.5 455 HO V8 (SAE gross), power goes to the rear wheels.
Against the entry 6.6 T/A V8 (149 kW), the Trans Am II 7.5 455 HO V8 (SAE gross) gains 68% in power; the 6.6 400 Ram Air IV V8 (SAE gross) (257 kW), strongest of the 5, has 7 kW more.
Dimensions drawing
To scale · width without mirrors
Zoom in to read the measurements - or see the table below.
grid 500 mm1 ft Side view: dashed lines mark the axles
Engine
| Fuel | Petrol |
|---|---|
| Displacement | 7,457 cm³ 7.5 l · 455 cu in |
| Cylinders | 8 |
| Power | 250 kW 340 PS · 335 hp |
| Drive | Rear-wheel drive |
Production
| Body type | Coupe |
|---|---|
| Years | 1971 |
| Generation | Trans Am II (1970–1981) |
Compare size All Trans Am II versions All Pontiac spec sheets
Data sources
Data checked by an editor against the sources below.
Data: 7 of 25 fields · 1 source · data changed 20 Oct 2026