351 "R" 4V 1971-1972 Boss 351-HO | |||||
Engine Type | 8 cylinder | Fuel | |||
90 degree, | super premium (1971) | ||||
Overhead Valves (OHV) | premium gas (1972) | ||||
Intake Manifold | |||||
Displacement | 351 cu.inches (CID) | aluminum (1971) | |||
Maximum torque | cast iron (1972) | ||||
370 lbs./ft. @ 4,000 RPM | Valve train | solid & adjustable lifters | |||
-1971 | Intake | 2.184"-2.195"" | |||
275 lbs./ft. @ 6,000 RPM | Exhaust | 1.7045"-1.7145" | |||
-1972 | Distributor | dual point | |||
vacuum advance | |||||
Maximum Horsepower | 330 BHP @ 5,400 RPM | Point Gap | |||
-1971 | Initial Ignition Timing | ||||
275 BHP @ 6,000 RPM | Dwell @ idle RPM | ||||
-1972 | |||||
Spark Plugs | Autolite ARF-42 | ||||
Firing Order | 1-3-7-2-6-5-4-8 | Spark Plug Gap | |||
(Number 1 cylinder on right bank, nearest radiator) | Long Block Weight | 530 | |||
in lbs. | |||||
Bore & Stroke | 4.002" x 3.50" | Emission Controls | |||
(101.6 mm X 88.9 mm) | NOx | ||||
Compression Ratio | California | ||||
11.5:1 (1971) | |||||
9.2:1 (1972) | |||||
Oil Pressure (hot) | 35 to 60 lbf/in2 | ||||
Mains | 4-bolt | RPM Rev Limiter | 6,050-6,150 RPM | ||
Carburetor | |||||
Autolite 4300-D (4V) | |||||
Squarebore | |||||
automatic choke | |||||