Theoil pump primer tool allows you to the oil pump with a drill motor and increase the oil pressure and move the oil to the top of the engine before starting the engine, preventing unnecessary wear and damage to the rotation and valve train components. Designed to fit in your distributor hole and no need to modify. Works by connecting to the oil pump shaft through the distributor hole and inserting in oil pump. Thick shaft design with triangle shaped end for no slippage. Use with 3/8inch or 1/2inch chuck hand drill. Application: 77-80 For Regal V8 305 5.0L. 92-94 For Commercial Chassis V8 350 5.7L. 77-86 For C10 V8 305 5.0L. 80-81 For V8 267 4.4L. 62-68 For V8 327 5.3L. 80-84 For V6 229 3.8L. 76-78 For K20 V8 454 7.4L. 87-87 For V10 V6 262 4.3L. 60-63 For 1000 Series V8 283 4.6L. 88-94 For C1500 V6 262 4.3L etc. For use with 3/8Inch or 1/2Inch chuck hand drill. 55-07 Small Block For V8 & Big Block V8 & V6 V8 200 229 262 265 267 283 302 305 307 327 350 396 400 402 427 454 4.3L 4.4L 4.6L 4.9L 5.0L 5.4L 5.7L 6.6L 6.5L 6.6L 7.0L 7.4L. Vehicle compatibility charts are for REFERENCE ONLY. Check product type and size to match your needs. Color:Black Material:Iron + Stainless Steel Package Contents: 1 x Oil Pump Primer Tool Kits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.