B230FT Aluminum Freeze Plug Retainer

Keep your freeze plug from popping out with this kit.

Each additional kit is composed of 8 retainer plate and 16 button head bolt.



*** Discontinued ***

These have become a popular product over on turbobricks.com! When doing a high horsepower redblock build or just for that little more peace of mind, these retainer are bolted in front of the freeze plug found on any B230 engine block and will prevent them from poping out in case of excessive pressure in the cooling system. Everything is included to mount them to your engine, using the supplied steel jig and the center drill you simply spotdrill where you want them to be. Drill, tap and mount the aluminum retainer using the included hardware.

The retainer are laser cut out of 3/16″ 6061-T6 aluminum then CNC machined to center themselve over the freeze plug. The jig is laser cut out of 1/4″ A36 steel. Screw are button head stainless steel cap screw.

Please note that the engine must be out of the car in order to install these. Allow 1.5 to 2 hr to complete the job.


  • 8x Aluminum Retainer
  • 1x Steel Jig for Spot Drilling
  • 16x #6-32 Stainless-Steel Button Head Cap Screw
  • 1x #2 Center Drill
  • 1x #36 PTC Drill
  • 1x #6-32 Sowa Bottom Tap


Additional information

Weight 1.1 lbs


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