302 "G" 4V
1969-1971
Boss
 
Engine Type 8 cylinder
90 degree,
Overhead Valves (OHV)
Displacement 302 cu.inches (CID)
Maximum torque 290 lbs./ft. @4,300 RPM
Maximum Horsepower  
290 BHP @ 5,800 RPM
 
470 BHP @ 9,000 RPM
(Trans Am Racing Version)
 
Firing Order 1-5-4-2-6-3-7-8
(Number 1 cylinder on right bank, nearest radiator)
Bore & Stroke 4.004" x 3.0028"
(101.6 mm X 76.0 mm)
Compression Ratio 10.5:1 (1969-70)
Compression Pressure 130-170 psi
Oil Pressure (hot) 35 to 60 lbf/in2
Mains cross bolted
   
Carburetor Holley 4150-C (4V)
  manual choke
   
Size of Carburetor  
Fuel premium gas
Intake Manifold aluminum
Valve train solid adjustable lifters
Intake  
2.225" -2.375" - 1969
2.185"-2.195" 1970-1971
 
Exhaust  
1.647"-1.662" early 1969
1.7075"-1.7125" 1969-1970
1.7045-1.7145" - 1971
 
 
Distributor  
dual point
vacuum advance
RPM limits
5,950-6,050 - 1969
6,050-6,150 - 1970
 
Point Gap .020" both sets
Initial Ignition Timing 16 degrees
Dwell @ idle RPM 30-33
Spark Plugs Autolite AF-32
(1969-70)
Autolite ARF-32
-1971
Plug Gap .035"
Long Block Weight 500
in lbs.



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