Oil Block Adapter for Chevrolet LS V8 Engines Specifications With this forged aluminum block make your engine more reliable easily and at a lower cost. 100% bolt-on in place of the factory oil bypass cover (just above the oil filter) this block allows you to easily add an oil cooler thanks to x2 Dash 10 male fittings. The oil can thus be easily redirected to a radiator at the oil filter outlet (after filtration). This oil block also has two 1/8 NPT ports ideal for installing oil temperature or pressure sensors. If you do not use these 1/8 NPT fittings we recommend adding thread locker (such as Loctite) to the plugs provided. Protect your investment and take care of your engine by installing this oil block! Compatibility: Chevrolet V8 LS1 LS2 LS3 LS4 LS6 LS7 (gen. 3 & 4 from 1997 to 2020)