StarterUltra Torque StarterUltra Torque Starter; 164 Tooth Flywheel; 250 ft./lb. Torque; 18:1 Compression Ratio; 4.5:1 Gear Reduction; 3/8in. Offset; Natural Finish;SPECIFICATIONS:Style: OEFEATURES:2.5 KW/3.4 HPUp to 18:1 CompressionClears Most Headers and Oil PansCan Be Inverted w/Solenoid Down5 Position RotationGreat for Big Cubic Inch EnginesIndividually Dyno Tested with Proof of Performance GuaranteePowermaster Ultra Torque Starter Are Rated Up To 18:1 Compression With 250 Ft-Lbs of Cranking Torque. With 3.4HP and a 4.4:1 Gear Reduction These Starter Can Keep Up With The Most Demanding Engines. 5 Position Rotation Billet Aluminum Mounting Block. All Powermaster Starters Come With Our Dyno Tested Proof Of Performance Guarantee. Made in USA.Manufacturer of starters and alternators for racing and show cars