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1971 Pontiac Grand Prix Series 27600
Hardtop
Standard Specifications
  Show Details  
Original Base Price $4,314.00
No. Produced 23,021
Body Maker Fisher
No. Doors 2
Passengers
Model Number 6657
Weight 3,838lbs
Wheelbase 118 inches
Length 210.5 inches
Width 75.9 inches
Height 55.4 inches
Front Tread 62 inches
Rear Tread 60 inches
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Type Own, V8, OHV
Displacement 400 cu. in.
Cylinders 8
Bore & Stroke 4.125 & 3 3/4 inches
Compression Ratio-Std 8.2 to 1
Compression Ratio-Opt
Brake Horsepower 300@4800
Rated Horsepower 54.3
Torque 400@3600
Type Downdraft 4-barrel
Make Rochester
  +  
Type Fully synchronized
Drive Rear wheel drive
No. Of Gears 3
Single plate dry disc
Clutch Size 10 2/5 inches
Semifloating
Hypoid
Differential Ratio 3.23 to 1
Front Independent ball joint with coil springs
Rear Coil link
Variable-ratio power
Service Power front disc, rear self-adjusting drum
Front Size 11 inches
Rear Size 9.5 inches
Emergency Rear service brakes
Size 9.5 inches
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Not Rated
VIN/Serial no. Starting 266571a100001
VIN Description Total Digits: 13
Digits 1: Make
Digits 2-3: Series
Digits 4-5: Body style
Digits 6: Model year
Digits 7: Assembly plant
Digits 8-13: Production number
VIN Location On plate on top of left side of dashboard, visible through windshield.
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Additional Information
Model SJ had a 455 cu. in engine.

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