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General Specifications

GENERAL SPECIFICATIONS

Item Specification
Lubricants and Sealants 
Motorcraft Metal Surface Cleaner ZC-21 WSE-M5B392-A
Motorcraft Metal Surface Prep ZC-31 -
Motorcraft Premium Gold Engine Coolant with Bittering Agent (US only) VC-7-B (US); CVC-7-A (Canada); or equivalent (yellow color) WSS-M97B51-A1
Motorcraft SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP (US); Motorcraft SAE 5W-20 Super Premium Motor Oil CXO-5W20-LSP12 (Canada); or equivalent WSS-M2C930-A
Silicone Gasket Remover ZC-30 -
Thread Sealant with PTFE TA-24 WSK-M2G350-A2
Engine 
Displacement 3.5L (4V) (214 CID)
No. cylinders 6
Bore/stroke 92.5/86.7 mm (3.641/3.413 in)
Fire order 1-4-2-5-3-6
Oil pressure -
Oil capacity 5.2L (5.5 qt)
Compression ratio 10.3:1
Spark plug AYSF-22FM Gap = 1.29-1.45 mm (0.051-0.057 in)
Cylinder Head and Valve Train 
Cylinder head gasket surface flatnessa -
Combustion chamber volume 55.84 cc (3.41 CI)
Valve tappet clearance intake 0.15-0.25 mm
(0.006-0.01 in)
Valve tappet clearance - exhaust 0.300-0.400 mm
(0.0118-0.0157 in)
Valve guide bore inner diameter 5.519-5.549 mm
(0.217-0.218 in)
Valve stem diameter - intake 5.479-5.497 mm
(0.2157-0.2164 in)
Valve stem diameter - exhaust 5.466-5.484 mm
(0.2151-0.2159 in)
Valve stem-to-guide clearance - intake 0.022-0.070 mm
(0.0008-0.0027 in)
Valve stem-to-guide clearance - exhaust 0.035-0.083 mm
(0.0013-0.032 in)
Valve head diameter - intake 36.82-37.18 mm
(1.44-1.46 in)
Valve head diameter - exhaust 30.82-31.18 mm
(1.21-1.22 in)
Valve face runout 0.05 mm (0.0001 in)
Valve face angle 90.50-91.50 degrees
Valve seat width - intake 1.3-1.5 mm
(0.051-0.059 in)
Valve seat width - exhaust 1.4-1.6 mm
(0.055-0.062 in)
Valve seat runout 0.04 mm
(0.0001 in) MAX
Valve seat angle 89.0-91.0 degrees
Valve spring free length (approx.) 48.4 mm (1.90 in)
Valve spring compression pressure (N @ spec. length) 510 N @ 27.32 mm
(115 lbs @ 1.08 in)
Valve spring installed height 37.0 mm (1.45 in)
Valve spring installed height pressure (N @ spec. length) 235 N @ 37.0 mm
(53 lbs @ 1.45 in)
Valve spring installed pressure - service limit 10% force loss @ specified height
Camshaft 
Theoretical valve lift @ 0 lash 9.6798 mm (0.38 in)
Lobe lift - intake 9.6798 mm (0.38 in)
Lobe lift - exhaust 9.6798 mm (0.38 in)
Allowable lobe lift loss 0.062 mm (0.0024 in)
Camshaft journal bore inside diameter - 1st journal 31.0375-31.0625 mm
(1.221-1.222 in)
Camshaft journal bore inside diameter - intermediate journals 25.9875-26.0125 mm
(1.023-1.024 in)
Camshaft bearing outside diameter - 1st journal 30.993-31.013 mm
(1.2202-1.2209 in)
Camshaft bearing outside diameter - intermediate journals 25.937-25.963 mm
(1.021-1.022 in)
Camshaft journal-to-bearing clearance, 1st journal - service limit 0.070 mm
(0.0027 in) MAX
Camshaft journal-to-bearing clearance, intermediate journals - service limit 0.0755 mm (0.0029 in) MAX
Runout 0.040 mm (0.0015 in) MAX
End play - standard 0.032-0.170 mm
(0.0012-0.0066 in)
End play - service limit 0.190 mm (0.00748 in) MAX
Cylinder Block 
Cylinder bore diameter - grade 1 -
Cylinder bore diameter - grade 2 -
Cylinder bore diameter - grade 3 -
Cylinder bore maximum taper -
Cylinder bore maximum out-of-round - limit -
Cylinder bore maximum out-of-round - service limit -
Main bearing bore inside diameter 72.400-72.424 mm (2.8503-2.8513 in)
Head gasket surface flatness -
Head gasket surface finish -
Crankshaft 
Main bearing journal diameter 67.5 mm (2.657 in)
Main bearing journal maximum taper 0.004 mm (0.00015 in)
Main bearing journal maximum out-of-round 0.006 mm (0.00023 in)
Main bearing journal-to-cylinder block clearance -
Connecting rod journal diameter 55.983-56.003 mm (2.204-2.205 in)
Connecting rod journal maximum taper 0.004 mm (0.00015 in)
Connecting rod journal maximum out-of-round 0.006 mm (0.00023 in)
Crankshaft maximum end play 0.101-0.291 mm (0.0039-0.0114 in)
Piston and Connecting Rod 
Piston diameter - single grade 92.476-92.490 mm
(3.6407-3.6413 in)
Piston-to-cylinder bore clearance 0.010 to 0.044 mm
(0.0003-0.0017 in)
Piston ring end gap - compression (top, gauge diameter) 0.15-0.25 mm
(0.0059-0.0098 in)
Piston ring end gap - compression (bottom, gauge diameter) 0.30-0.55 mm (0.0118-0.0216 in)
Piston ring end gap - oil ring (steel rail, gauge diameter) 0.15-0.45 mm
(0.0059-0.0177 in)
Piston ring groove width - compression (top) 1.230-1.25 mm
(0.0484-0.0492 in)
Piston ring groove width - compression (bottom) 1.530-1.55 mm
(0.0602-0.0610 in)
Piston ring groove width - oil ring 2.53-2.55 mm
(0.0996-0.1003 in)
Piston ring width - upper comp ring 1.17-1.19 mm
(0.0460-0.0468 in)
Piston ring width - lower comp ring 1.47-1.49 mm
(0.0578-0.0586 in)
Piston ring-to-groove clearance (upper and lower compression rings) 0.040-0.080 mm
(0.0015-0.0031 in)
Piston pin bore diameter 23.002-23.006 mm
(0.9055-0.9057 in)
Piston pin diameter 22.998-23.000 mm
(0.9054-0.9055 in)
Piston pin length 55.975 mm (2.203 in)
Piston pin-to-piston fit 0.002 to 0.008 mm
(0.00007-0.0003 in)
Piston-to-connecting rod clearance 2.7 mm (0.1 in)
Connecting rod-to-pin clearance - standard 0.007-0.021 mm
(0.0002-0.0008 in)
Connecting rod-to-pin clearance - service limit -
Connecting rod pin bore diameter 23.007-23.019 mm
(0.905-0.906 in)
Connecting rod length (center-to-center) 152.68 mm (6.01 in)
Connecting rod maximum allowed bend 0.038 mm (0.0014 in)
Connecting rod maximum allowed twist 0.050 mm (0.0019 in)
Connecting rod bearing bore diameter - grade 1 59.866-59.872 mm
(2.3569-2.3571 in)
Connecting rod bearing bore diameter - grade 2 59.873-59.879 mm
(2.3572-2.3574 in)
Connecting rod bearing bore diameter - grade 3 59.880-59.886 mm
(2.3574-2.3577 in)
Connecting rod bearing-to-crankshaft clearance -
Connecting rod side clearance (assembled to crank) - standard 0.175-0.425 mm
(0.0068-0.0167 in)
Connecting rod side clearance (assembled to crank) - service limit -

a Refer to the appropriate procedures.