The Primer shafts are rated at 170,000 psi to ensure extended service life.
This unit works well with a 1/2-inch or 3/8-inch chuck hand drill.
This oil pump primer tool is compatible with SB/BB Chevy V8 & Chevy V6 Engines, it fits for all small & big blocks including popular size of 327 350 355 383 388 400 406 427 434 454
If any questions, please contact seller directly, we will reply you in 24 hours as soon as possible.
6-month warranty; 100% refund if you are not satisfied with our products in 30 days.