Holley 503-6 - Holley Carburetor Rebuild Kits

Rebuilding your Holley carb?
With three base Holley carburetor parts rebuild kits in numerous variations, you're bound to find the correct one for your application. Get your Holley rebuilt and performing well!

Trick Kit
For complete rebuilds of Holley vacuum secondary and double pumper carbs, this single kit services them all. In addition to the basics, extra parts (accelerator pump discharge nozzles, accelerator pump cams, vacuum secondary springs, and extra gaskets) are included for performance tuning.
A Holley carburetor diagram with an exploded view of the carb, step-by-step instructions, and detailed tuning guide are provided.

Fast Kits
There are five Fast Kits to service Holley performance carbs. Like the Trick Kit, only quality Holley parts are used, and step-by-step instructions and a detailed tuning guide are provided. Here are the part numbers and corresponding carburetor models:
   510-37-1542 Model 4160
   510-37-1543 Model 2300
   510-37-1544 Model 4150
   510-37-1546 Model 4150 HP
   510-37-1547 Model 4500

Renew Kits
Purchase a Holley Renew Kit® next time a carburetor rebuild is due and you'll be assured of using only genuine Holley factory service parts. This really is the only sure way of knowing that your Holley carburetor will be brought back to original specifications and "like new" condition. The Renew Kit® package includes Holley Carb Parts: new gaskets, O-rings, pump diaphragm(s), needle and seat(s), power valve(s), and a detailed instruction sheet to take you step-by-step through the rebuilding process. All the parts and information necessary for a professional rebuild are included. Leave the "guessing" to others. Be assured with Holley brand Renew Parts Kits.