4th cylinder cooling adapter plate.

Status: In Stock

Price: $45

Orders from outside the USA please email me for payment instructions and additional shipping charges.

4th cylinder cooling modification adapter plate and oring.

  • Converts freeze plug on drivers side of head into a 3/8" NPT port.
  • Just remove the freeze plug and bolt the adapter in place.
  • No modifications to head required.
  • Make sure the head surface is smooth or the oring won't seal.
  • Comes with CNC machined adapter, and oring.
  • Does not come with hardware or any other fittings.
  • Constructed of 6061-T6/T651 aluminum.

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