【Compatible with】Fits SB/BB Chevy V8 & V6 Engines. Fits all small and big blocks including popular sizes of (283 307 327 350 355 383 388 396 400 402 406 427 434 454)
【Function】Oil Pump Primer Primes the lubricating system of a rebuilt engine prior to its first start to prevent the damage of a dry start.
【How it works】Oil primer tool works by connecting to the oil pump shaft through the distributor hole and inserting it in an oil pump.
【SBC engine oil priming tool】Thick shaft design with triangle shaped end for no slippage. Use with 3/8" or 1/2" chuck hand drill
【Worry-free after-sales service】If you have any problems, please contact us in time, we will solve for you within 24 hours.