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Water Pump: Notes

GMC COOLING SYSTEM CAPACITY

Application Quarts
250" Engine
  "G" Models 12
  "C" & "K" Models
    Man. Trans 12.2
    Auto. Trans. & Heavy Duty Rad 12.5
  PI 500 12
  P2500 & P3500 12.5
292" Engine
  "C" & "K" Models (3)12.7
  P2500 & P3500 13.1
350" Engine
  "G" Models (5)15
  "K" Models
    Man. Trans. & Heavy Duty Rad 16.5
    Auto. Trans. & Air Cond 17.9
  "P" Models (2)16.9
  C1500
    Man. Trans (4)15.8
    Auto. Trans. & Heavy Duty Rad (6)16.2
  C2500 & C3500
    Man. Trans (7)16.2
    Auto. Trans. & Air Cond (4)17.7
454" Engines
  Man. Trans. & Heavy Duty Rad 18.5
455" Engines
  Motor Homes 21
(1) W/Heater add 1 qt., W/Heavy Duty Rad., Add 1 qt.
(2) W/Heavy Duty Rad., add 1.5 qt.
(3) W/Heavy Duty Rad., add.5 qt.
(4) W/Air Cond., add 2 qts.
(5) W/Air Cond., add 3 qts.
(6) W/Air Cond., add.5 qt.
(7) W/Heavy Duty Rad., add 2 qts.
CHEVROLET COOLING SYSTEM CAPACITY

Application (1) Quarts
250" Engines
  "G" Models 12
  "C" & "K" Models
    Man. Trans 12.2
    Auto. Trans. & Heavy Duty Rad 12.5
  P10 12
  P20 & P30 12.5
292" Engines
  "C" & "K" Models 12.5
  P20 & P30 Models 12.5
350" Engines
  "G" Models (2)15
  "K" Models
    Man. Trans. & Heavy Duty Rad 16.5
    Auto. Trans. & Air Cond 17.9
  "P" Models 16.9
  C10 Models
    Man. Trans 15.8
    Auto. Trans. & Heavy Duty Rad 16.2
    Air Cond 17.7
  C20 & C30
    Man. Trans 16.2
    Auto. Trans. & Heavy Duty Rad 17.7
    Heavy Duty Rad 18-8
454" Engines
  Man. Trans. & Heavy Duty Rad 18.5
  Auto. Trans. & Air Cond 21
455" Engines Motor Homes 21
(1) W/Heater, Heavy Duty Rad., or Air Cond., add 1 qt.
(2) W/Air Cond., add 2 qts.
GMC PRESSURE CAP

Application PSI
All Models 15
CHEVROLET PRESSURE CAP

Application PSI
All Models 15
GMC THERMOSTAT

Application (1)Rating °F
C2500 & C3500 W/292" or 454" (Calif. Only) 180
All Others 195
(1) Thermostat should be full open at 25°F above stamped rating and fully closed at 10°F below stamped rating.
CHEVROLET THERMOSTAT

Application (1) Rating °F
C20 & C30 W/292" or 454" (Calif. Only) 180
All Others 195
(1) Thermostat should be full open at 25°F above stamped rating and fully closed at 10°F below stamped rating.
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