Archean
Posts: 5,650 +102
That's right Cap, the 396 from 65-68 produced from 325-380 hp and the 389 was just shy of 300 hp. and then emission standards dropped them about 100 hp.
The 389 remained the standard Pontiac V8 engine for a while, and was offered in a bewildering variety of outputs ranging from 215 to 368 horsepower.