These drill bits have been chosen specifically for this kit
E4 E5 Co-Op with Buda Over Head Valve Engine)
Fits the following International Harvester Diesel Engines: D-155 D-179 D-206 D-239 D-246 D-268 D-310 D-358
Must drill & tap block & main cap to use this bolt on seal for some applications
Electronic Ignition Conversion Kit Fits John Deere Tractor | 12-VOLT Negative Ground Carburetor These drill bits have beenQuality Aftermarket Electronic Ignition Conversion Kit 12 Volt Negative Ground Fits John Deere Tractor Models: 300, 300B, 301, 301A, 302A, 310, 350, 350B, 380, 135 (power unit), 152 (power unit), 1020, 1520 For all listed models with Prestolite IBT4301B, IBT4301C, IBT4301D distributors Specifications Fits tractors with 12 volt negative ground system only Fits 3 cylinder applications with Prestolite distributor Must use graphite style spark plug wires.