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1974 GMC K25/K2500 Pickup Engine: 4.1L L6; with 2 Line Pump; with Stamped Steel Pump; with I.D. # 40446;. 1967-1973 GMC K25/K2500 Pickup Engine: 4.1L L6; with 2 Line Pump; with Stamped Steel Pump;. 1967-1974 GMC K25/K2500 Pickup Engine: 4.8L L6; with 2 Line Pump; with Stamped Steel Pump;.





