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Part 90-23-28STD - 4 Window Valve Pocket with guide.
1923 - 1925 DCA & DCB Motors
1926 - 1929 FD & JD's
1928 - 1929 74" H Motors
- Valve guide is .281" ID and must be honed to fit you valve.
- The Valve Seat has been cut.
- The rocker arm tower locating pin is installed.
- Fits Front or Rear Cylinder. Sold Each.
- OD - 2.372" Height - 1.3"
(this part replaces parts 90-23 and 90-28)
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