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Home >> Lincoln >> 1978 >> Versailles >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 302", 351" & 400" V8 Engines >> Engine Specifications

Engine Specifications

GENERAL SPECIFICATIONS

Engine Net HP At RPM Torque (Ft. Lbs. at RPM) Compr. Ratio Bore Stroke Displ. Cu. Ins.
320" 2-Bbl. 134@3400 248@1600 8.4-0 4.00" 3.00" 302
351"W 2-Bbl. 144@3200 277@1600 8.4-0 4.00" 3.50" 351
351"M 2-Bbl. 152@3600 278@1800 8.0-0 4.00" 3.50" 351
400" 2-Bal. 166@3800 319@1800 8.0-0 4.00" 4.00" 400
VALVES

Engine & Valve Head Diam. Face Angle Seat Angle Seat Width Stem Diameter Stem Clearance Valve Lift
302" & 351" W              
  Int. 1.782" 44° 45° .060-.080" 3416-.3423" .0010-.0027" .3823"(1)
  Exh. (3)1.451" 44° 45° .060-.080" .3411-.3418" .0015.0032" .3884(1)
351" M & 400"              
  Int. 2.041" 44° 45° .060-.080" 3416-.3423" .0010-.0027" .4065"(2)
  Exh. 1.655" 44° 45° .060-.080" .3411-.3418" .0015.0032" .4065"(2)
(1) Valve lift on 351" W engine is: intake.4186", exhaust.4186".
(2) Valve lift on 400" engine is: intake.4280", exhaust.4325".
(3) Head diameter on 351" W is 1.461".
PISTONS, PINS, RINGS

Engine PISTONS PINS RINGS
(1)Clearance Piston Fit Rod Fit Ring End Gap Side Clearance
302" .0018-.0026" .0002-.0004" Press Fit Comp.
Oil		 .010-.020"
.015-.055"		 .002-.004"
Snug
351"W .0018-.0026" .0003-.0005" Press Fit Comp.
Oil		 .010-.020"
.015-.055"		 .002-.004"
Snug
351"M, 400" .0014-.0022" .0003.0005" Press Fit Comp.
Oil		 .010-.020"
.015.055"		 .002-.004"
Snug
(1) Measured at piston bore centerline, 90° to pin bore.
CRANKSHAFT MAIN & CONNECTING ROD BEARINGS

Engine MAIN BEARINGS CONNECTING ROD BEARINGS
Journal Diam. Clearance Thrust Bearing Crankshaft End Play Journal Diam. Clearance Side Play
302" 2.2482-2.2480" .0008-.0015" No. 3 .004-.008" 2.1228-2.1236" .0008-.0015" .010.020"
351"W 2.9994-3.0002" .0008-.0015" No. 3 .004-.008" 2.3103-2.3111" .0008-.0015" .010.020"
351"M, 400" 2.9994-3.0002" .008-.0015" No. 3 .004-.008" 2.3103-2.3111" .0008-.0015" .010.020"
CAMSHAFT

Engine Journal Diam. Clearance(1)(3) Lobe Lift(2)
302" 2.0805-2.0815" .001-.003" Int..2373"
2.0655-2.0665" Exh..2474"
2.0505-2.0515"
2.0355-2.0365"
2.0205-2.0215"
351" W Same as 302" .001-.003" Int..235"
Exh..285"
351" M 2.1238-2.1248" .001-.003"  
2.0655-2.0665" Int..235"
2.0505-2.0515" Exh..235"
2.0355-2.0365"
2.0205-2.0215"
400" Same as 351" M .001-.003" Int..247"
Exh..250"
(1) Wear limit is.006"
(2) Max. allowable lobe lift loss is.005"
(3) Allowable end play is.001-.007" on 302" and 351" W engines and.001-.006" on 351" M and 400" engines.
VALVE SPRINGS

Engine Free Length PRESSURE (LBS.)
Valve Closed Valve Open
302"      
  Int. 1.94" 76-84@ 1.69" 190-210@1.31"
  Exh. 1.94" 76-84@1.69" 190-210@1.20"
351"W      
  Int. 2.06" 71-79@1.79" 190-210@1.34"
  Exh. 1.87" 76-84@1.60" 190-210@1.20"
351"M      
  Int. 2.06" 76-84@1.82" 215-237@1.39"
  Exh. 1.93" 79-87@1.63" 215-237@1.39"
400"      
  Int. 2.06" 76-84@1.82" 215-237@1.39"
  Exh. 1.93" 79-87@1.68" 215-237@1.39"
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