Feature:1. Applicable Models: Replacement for Chevy SBC 350 BBC 454 V6 V8 Small Big Block Engine 327 350 355 383 388 400 406 427 434 454.2. Main Function: Allowing you to spin the oil pump with a drill motor and bring up the oil pressure and moving the oil to the top of the engine, preventing unnecessary damage to rotating and valve train components.3. Accurately Positioning: Engine oil pump primer features a special billet aluminum sleeve that accurately positions the shaft and prevents it from wobbling.4. No Slippage: Thick shaft design oil pump primer tool with no sliding at the triangular end, can be used with 3/8in or 1/2in chuck hand drills.5. Excellent Choice: Professional manufacturing, this is your ideal option and replacement for your rebuild, repair, and maintenance needs.Specification:Item Type: Oil Pump Primer ToolMaterial: MetalFitment:Replacement for Chevy SBC 350 BBC 454 V6 V8 Small Big Block Engine 327 350 355 383 388 400 406 427 434 454.Package List:1 xOil Pump Primer Tool1 x Flange