How much horsepower does a 1968 GTO 400 HO have?
In the 1968 Pontiac GTO it was given a 10. The standard GTO engine was the 400 cu in (6. L) V8, but now with 8. Power was rated at 300 hp (220 kW) SAE gross at 4,800 rpm and torque at 400 lb⋅ft (542 N⋅m) at 3,600 rpm.