WIDE APPLICATION: Compatible with all SB/BB Chevy V8 & V6 Engines, including popular sizes of 283, 307, 327, 350, 355, 383, 388, 396, 400, 402, 406, 427, 434, and 454. Designed specifically for Chevy engines, this indispensable tool ensures a seamless priming process, allowing you to build oil pressure efficiently and distribute oil effectively to the camshaft, rockers, and valvetrain.