First Generation Firebird Cooling Fans

Four Blade Fans

9794230

4 blade, 17.625″ diameter, pitch 76 / 104 degrees

1967 L6 and 326 2bbl w/o A.C. or H.D.; 1968-1969 L6 w/o A.C. or H.D.

9798940

4 blade, 19″ diameter, 2 5/16″ pitch

1967 326 A.I.R. exc. A.C.; 1967-8 V8 exc. A.C., A.I.R. or H.D.; 67-8 400 Ram Air; 68 V8 AT 2-BC exc. A.C.; 69 V8 exc. A.C. or H.D.

Five Blade Fans

480033

5 blade, 19″ diameter, 2 3/16″ pitch Power-Flex

68-9 400-4BC exc. A.C., H.D. or Ram Air

9779005

5 blade, 19″ diameter, 2 1/4″ pitch

67 V8 H.D. exc. A.C.

Seven Blade Fans

9788982

7 blade, 18″ diameter Power-Flex

1967-9 L6 with A.C. or H.D.

9796135

7 blade, 19″ diameter, 2 1/2″ pitch Power-Flex

69 V8 H.D.

9777012

7 blade, 19.5″ diameter, 1 7/8″ pitch

67 400 exc. A.C. or Ram Air; 67 V8; 68 V8 exc. A.C.

9796372

7 blade, 19.5″ diameter, 2 1/4″ pitch, thermo clutch

1967-9 V8 with A.C.

Source: 1967 Pontiac Firebird Service Supplement, A.M.A. specifications