How high can a 289 rev?
How high can a 289 rev? The stock valvetrain on a plain 289 won't go much over 5500 rpm before the valves start kissing the pistons. Of course, revving it higher than that doesn't make any more power, as it maxes out before 5000 rpm anyway. How much does a 289 v8 horsepower? Engine BasicsYear1965-67 “A” Code“K” Code ShelbysPower (hp)225 hp @ 4400 RPM306 hp @ 6000 RPMTorque (lb/ft)305 lb/ft @ 3200 RPM329 lb/ft @ 4200 RPMCompression10.0:110.5:1 (65)Displacement289 cu / 4.7 liters289 cu / 4.7 liters How do I get more power out of my 289? Install a high-flowing dual-plane...