1954-1956 Cadillac Power Brake Conversion Kit Booster & Master Cylinder

This new power brake conversion kit fits 1954–1956 Cadillac models and includes a new booster and master cylinder (check the listing for details on included hardware and compatibility). It is listed in New condition and is intended to support a power brake conversion on applicable vehicles. Review the listing carefully to confirm exact fitment for your year and model, especially for 1955 applications, and to see any notes about installation requirements. Free Shipping is included with this purchase.

USD 735.00
Condition: see listing
LocationBattle Ground, Washington US
ShippingFree shipping (check listing for details)
Seller battlebornbrakes
99.9% positive · 5733 feedback
ListingFixedPrice · Active
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1954-1956 Cadillac Power Brake Conversion Kit Booster & Master Cylinder Specs
Restocking FeeNo
Return shipping will be paid byBuyer
Returns AcceptedReturns Accepted
Item must be returned within30 Days
Refund will be given asMoney Back
Vintage PartYes
Manufacturer Part Number56BBKS
BrandBattle Born Brakes
Manufacturer WarrantyNo
Listing details

This is a complete bolt in kit for 1954 to 1956 Cadillacs. This kit uses a modern power booster and dual circuit master cylinder mounted to the firewall using the bolt holes for the factory air box. It includes a new brake pedal that swings from a different location (looks like it could be original too). A modern GM booster and master cylinder give a significantly improved braking feel and power while adding safety through the dual circuit system. This can be used with factory drums, disc/ drum or disc/ disc. Let me know what brakes you have at check out and I will send the correct proportioning valve. It will have the pedal feel of a modern car- minimal effort required with a positive and firm feel. No more soft or sloppy pedal! Installation is fairly straightforward- likely no cutting required, this kit doesn't involve anything permanent that can't be undone in a couple hours! You have to remove the driver side air box, vent door, master cylinder, master cylinder mounting plate, and then this kit bolts in. Brake lines are included and pre-bent but the rear line will require you to splice in to your original system. Installation time is about 4 hours. This kit comes with everything including proportioning valve, brake lines, and hardware! All you need is brake fluid and a port on your intake to plug into vacuum. Also, you will have more room in the valve cover area that the original air box. so it clears all original engines just fine, and will provide additional clearance for vehicles with a swapped engine. The firewall box has water drain spouts and new drain hose is included. water will be able to drain out from the windshield area just as factory. What you get: Firewall box Brake pedal bracket, goes through air vent hole Brake pedal W/ Bushings and rubber pad GM style brake boosterGM style master cylinder All new high quality bolts 2X 3/16" brake lines- custom cut, bent, and flaredProportioning Valve + metal lines (mounts beneath MC, pictured) 3/8 Vacuum hoseWater drain hose, same style and function as factory Misc. hardware All metal parts are CAD designed, laser cut, formed on a computer controlled press brake, professionally welded, and painted satin black for consistent high quality results.