| 351 "C" 4V 1970-1973 Cleveland |
351 "W" 4V 1969 Windsor |
351 "R" 4V 1971-1972 Boss 351-HO |
351 "H" 2V 1969-73 |
400 2V | |
| Engine Type | 8 cylinder 90 degree, Overhead Valves (OHV) |
8 cylinder 90 degree, Overhead Valves (OHV) |
8 cylinder 90 degree, Overhead Valves (OHV) |
8 cylinder 90 degree, Overhead Valves (OHV) |
8 cylinder 90 degree, Overhead Valves (OHV) |
| Displacement | 351 cu.inches (CID) | 351 cu.inches (CID) | 351 cu.inches (CID) | 351 cu.inches (CID) | 400 cu inches (CID) |
| Maximum torque |
380 lbs./ft. @ 3,400 RPM |
380 lbs./ft. @ 3,400 RPM | 370 lbs./ft. @
4,000 RPM (1971) 286 lbs./ft. @ 6,000 RPM |
355 lbs./ft. @ 2,600 RPM | 400 lbs./ft. @
2,200 RPM (1971) 298 lbs./ft. @ 2,200 RPM |
| Maximum Horsepower | 300 BHP @ 5,400 RPM | 300 BHP @ 5,400 RPM | 330 BHP @ 5,400 RPM (1971) 275 BHP @ 6,000 RPM (1972) |
250 BHP @ 4,600 RPM (1969-70) 177 BHP @ 4,600 RPM (1971-73) |
260 BHP @ 4,400 RPM (1971) 172 BHP @ 4,000 RPM (1972) |
| Firing Order | 1-3-7-2-6-5-4-8 (Number 1 cylinder on right bank, nearest radiator) |
1-3-7-2-6-5-4-8 (Number 1 cylinder on right bank, nearest radiator) |
1-3-7-2-6-5-4-8 (Number 1 cylinder on right bank, nearest radiator) |
1-3-7-2-6-5-4-8 (Number 1 cylinder on right bank, nearest radiator) |
1-3-7-2-6-5-4-8 (Number 1 cylinder on right bank, nearest radiator) |
| Bore & Stroke | 4.00" X 3.50" (101.6 mm X 88.9 mm) |
4.00" X 3.50" (101.6 mm X 88.9 mm) |
4.00" x
3.50" (101.6 mm X 88.9 mm) |
4.00" X
3.50" (101.6 mm X 88.9 mm) |
4.00" X
4.00" (101.6 mm x 101.6 mm) |
| Bore Spacing | 4.38 | 4.38 | 4.38 | 4.38 | 4.38 |
| Compression Ratio | 11.0:1 | 11.0:1 | 11.5:1
(1971) 9.2:1 (1972) |
9.51:1 | 9.0:1
(1971) 8.4:1 (1972) |
| Oil Pressure (hot) | 35 to 60 lbf/in2 | 35 to 60 lbf/in2 | 35 to 60 lbf/in2 | 35 to 60 lbf/in2 | 35 to 60 lbf/in2 |
| Mains | 2-bolt | 2-bolt | 4-bolt | 2-bolt | |
| Carburetor |
Autolite 4300-A (4V) |
Autolite 4300-A
(4V ) Squarebore automatic choke |
Autolite 4300-D (4V) Squarebore automatic choke |
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| Size of Carburetor |
4V- Autolite Model 4300-A w/std bolt pattern CJ - Autolite Model 4300-D w/spread bore pattern (1971) |
Autolite Model 4300-D w/spread bore pattern | |||
| Fuel | premium gas | premium gas | super premium (1971)
premium gas (1972) |
regular gas | regular gas |
| Intake Manifold | cast iron | cast iron | aluminum (1971)
cast iron (1972) |
cast iron | cast iron |
| Valve train | hydraulic lifters | hydraulic lifters | solid & adjustable lifters | hydraulic lifters | hydraulic lifters |
| Intake | 2.185"-2.195" |
2.185"-2.195" |
2.184"-2.195"" | 1.9025"-1.9175" | 2.050-2.032 |
| Exhaust | 1.7045"-1.7145" | 1.7045"-1.7145" | 1.7045"-1.7145" | 1.533"-1.548" | 1.6595-1.6495 |
| Distributor | single point vacuum advance |
single point vacuum advance |
dual point vacuum advance |
single point vacuum advance |
single point vacuum advance |
| Point Gap | .017" | ||||
| Initial Ignition Timing | 6 degrees | ||||
| Dwell @ idle RPM | 24-29 (manual) 26-31 (auotmatic) |
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| Spark Plugs | Autolite AF-42 | Autolite AF-42 | Autolite ARF-42 | Autolite ARF-42 | |
| Spark Plug Gap | .032"-.036" | ||||
| Long Block Weight in lbs. |
530 | 530 | 530 | 530 | 530 |
| Emission Controls | IMCO (with Automatic, only NOx
system) California IMCO (with automatic, only) |
IMCO (with Automatic, only NOx
system) California IMCO (with automatic, only) |
NOx California |
IMCO (with Automatic, only NOx
system) California IMCO (with automatic, only) |
|
| RPM Rev Limiter | 6,050-6,150 RPM | ||||
|
2V = 2barrel carb 1970 - The 351 engine was used in Mercury Cougars & Montegos as well as the Ford Mustangs and Torinos. 1970 1/2 - The Ford Falcons had an optional 351 engine. 1971 - The 351 was available for use in the Mercury Cougars & Montegos and the Ford Mustangs and Torinos. 1971-1973 - The HO (High Output) Boss 351 engine was used only in Mustangs. Introduced in December 1970 and was available until the model year 1972. The 1972 Mustang Boss 351's also had ram air. |
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