Fits : Chevrolet GMC Pontiac Cadillac Buick Saab LS Engines 4.8 5.3 5.7 6.0 Liter V8 Engines LS1 LS3 LS6 And More. THESE OIL PUMPS ARE APPLICATION SPECIFIC - IF YOU DO NOT SEE YOUR APPLICATION IN THE COMPATIBILITY GUIDE - IT WILL NOT BE CORRECT. This Pump Provides An Additional 20 Percent More Oil Flow To Your Engine MAY Increase Oil Pressure In High Mileage Engines - Depending On Actual Engine Condition. Welcome to our store, we commit to provide you the best innovative, quality products & professional services with competitive prices.Our mission is to provide each customer the best possible shopping experience for automotive parts & accessories. Also please confirm your address is correct, and if you want to change the address, just let us know. We aim at satisfying every visitor, no matter what kind of situation you meet with, we will be right here to serve you. Tell your friends when you are satisfied and DO tell us when you are not! Your encouragement will keep us moving forward.