A .030 bore alone wouldn't add enough horse power to even feel. Now, add flat top pistons, a good cam, headers, maybe a decent set of heads and carb you'd see improvement. But if you added that to a stock bore 305 you'd see the same results.
285 horsepower
how much horsepower does a 6.0 vortech motor have
Advertised Horsepower is---245HP @ 4000 RPMs.
mine has 290 hp
First off, the 402, is just a 396, bored .030 over. The HP rating will be aroun d 300, to 325. It is a torque motor, more than a horsepower motor.
1200 hp
Get it chipped and tuned by a rolling road
1980 35 Chevy motor has 235 horsepower (175 kW) and 285 lb·ft (387 N·m). More info at http://en.wikipedia.org/wiki/Chevrolet_Small-Block_engine
Need to KNOW the year and what it came in from the factory.
Depends on how the motor is set up.
165 HP at 3800 RPMS.
the 1986 Chevy truck 305 HO produced 180 hp