Nissan VK56DE (2009)
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Specifications

Nissan VK56DE, V8 (90o) cyl, 4 stroke, petrol engine
Introduced in 2009
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Dimensions

Cylinders arrangement: V8 (90º)
Strokes: 4
Bore x Stroke: 98.0 x 92.0 mm
Capacity: 5552 cc
Compression ratio:

Construction materials

gravity die casting (GDC) aluminium alloy ATK 348A long block with ductile iron cylinder liners 232 mm deck height, aluminium alloy head
steel connecting rod distance center to center 154.5 mm
piston compression height 31.63 mm and piston height 52 mm
forged steel crossplane crankshaft with 5 main bearings

Cylinder-head

crossflow design
chain driven DOHC with CVTCS on the intake valves, 4 valves / cyl - 32 valves total
intake valve diameter 37 mm
exhaust valve diameter 31.5 mm
Nissan-56-L-VK56DE-Engine-Timing-Marks-Diagram.jpg?x15270 Source
1. Camshaft sprocket (RH) bank INT (valve timing control)
2. Camshaft sprocket (RH) bank EXH
3. Camshaft dowel pin (RH) bank
4. Timing chain (RH) bank
5. Timing chain slack guide (RH) bank
6. Chain tensioner (RH)
7. Crankshaft sprocket
8. Crankshaft Key
9. Timing chain tension guide (LH) bank
10. Timing chain (LH) bank
11. Camshaft dowel pin (LH) bank
12. Camshaft sprocket (LH) bank EXH
13. Camshaft sprocket (LH) bank INT (valve timing control)
14. Chain tensioner (LH)
15. Timing chain tension guide (RH) bank
16. Timing chain slack guide (LH) bank
A. (LH) bank
B. (RH) bank
C. Alignment mark (Link color: copper)
D. Alignment mark (Link color: copper)
E. Alignment mark (Identification mark)
F. Alignment mark for (LH) bank (Notch)
G. Alignment mark for (LH) bank (Link Color: zinc yellow)
H. Alignment mark for (RH) bank (Link Color: zinc yellow)
J. Alignment mark (Link color: copper)
K. Alignment mark (Identification mark)
L. Alignment mark (Identification mark)
M Alignment mark (Link color: copper)
N. Alignment mark (Identification mark)

Note: The illustration above shows the relationship between the mating mark on each timing chain and that of the corresponding sprocket, with the components installed.

Aspiration

natural with multipoint electronic port fuel injection

Ignition

ECU,
Firing order, 1-8-7-3-6-5-4-2
cylnum-1.png Source

Cooling and lubrication

water cooled
dry sump

Torque values

all readings in ft. lbs.

Intake Manifold -73 FT. LBS
Exhaust Manifold -21 FT. LBS

CYLINDER HEAD BOLTS
Step 1: 72 ft. lbs
Step 2: Loosen all bolts completely
Step 3: 33 ft. lbs.
Step 4: +60 degrees
Step 5: +60 degrees

FLYWHEEL BOLTS 65 FT. LBS

MAIN BEARING BOLTS
Step 1: Main Bolts to 29 ft. lbs.
Step 2: Sub-bolts to 22 ft. lbs.
Step 3: Main Bolts +40 degrees
Step 4: Sub-Bolts +30 degrees
Step 5: Side Bolts to 36 ft. lbs.

ROD BEARING BOLTS
Step 1: 11 ft. lbs.
Step 2: +90 degrees

CRANKSHAFT DAMPER BOLTS
Step 1: 65 ft. lbs.
Step 2: +90 degrees

Spark Plugs-18 FT. LBS
Oil Pan Drain Plug-25 FT. LBS

Models used and Output

Year Model Induction Compression ratio Power Torque
2009 Nissan R35 GT-R MPFI 440 kW / 590 hp 479.35 lb·ft / 649.91 N·m
esengines.com-VW-2005_Nissan_Titan_VK56DE_5.6_Liter_Engine_-__EsEngines.com-31.jpg Source
nissan2.jpg Source

Service data

Number of piston rings: 2 compression, 1 oil
Number of main bearings 5
Compression ratio 9.8
Compression pressure, kPa (kg/cm2 , psi)/rpm
Standard 1,520 (15.5, 220)/200
Minimum 1,324 (13.5, 192)/200
Differential limit between cylinders 98 (1.0, 14)/300

EXHAUST MANIFOLD
Unit: mm (in)
Surface distortion Exhaust manifold 0.3 (0.012)

CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
Camshaft runout [TIR*] Less than 0.02 (0.0008)

Valve Lifter
Valve Clearance
Unit: mm (in)
Camshaft cam height “A” Intake & Exhaust
Cam wear limit 0.02 (0.0008)
Outside diameter of camshaft journal 25.953 - 25.970 (1.0218 - 1.0224)
Camshaft bracket inside diameter 26.000 - 26.021 (1.0236 - 1.0244)
Camshaft journal clearance 0.030 - 0.068 (0.0012 - 0.0027)
Camshaft end play 0.115 - 0.188 (0.0045 - 0.0074)
Camshaft sprocket runout [TIR*] Less than 0.15 (0.0059)
Items Standard
Valve lifter diameter 33.977 - 33.987 (1.3377 - 1.3381)
Valve lifter hole diameter 34.000 - 34.016 (1.3386 - 1.3392)
Clearance between lifter and lifter guide 0.013 - 0.039 (0.0005 - 0.0015)
Items Hot* Cold
Intake 0.304 - 0.416 (0.012 - 0.016) 0.26 - 0.34 (0.010 - 0.013)
Exhaust 0.308 - 0.432 (0.012 - 0.017) 0.29 - 0.37 (0.011 - 0.015)

CYLINDER HEAD
Unit: mm (in)
Head surface distortion 0.03 (0.0012) 0.1 (0.004)
Nominal cylinder head height “H” 126.3 (4.97)

Valve head diameter “D”
Intake 37.0 - 37.3 (1.457 - 1.469)
Exhaust 31.2 - 31.5 (1.228 - 1.240)
Valve length “L”
Intake 96.21- 96.71 (3.7878 - 3.8075)
Exhaust 93.74 - 94.24 (3.6905 - 3.7102)
Valve stem diameter “d”
Intake 5.965 - 5.980 (0.2348 - 0.2354)
Exhaust 5.955 - 5.970 (0.2344 - 0.2350)
Valve seat angle “α”
Intake
45°15′ - 45°45′
Exhaust
Valve margin “T”
Intake 1.1 (0.043) 0.6 (0.024)
Exhaust 1.3 (0.051)

Valve guide
Outside diameter 10.023 - 10.034 (0.3946 - 0.3950) 10.223 - 10.234 (0.4025 - 0.4029)
Inside diameter (Finished size) 6.000 - 6.018 (0.2362 - 0.2369) —
Cylinder head valve guide hole diameter 9.975 - 9.996 (0.3927 - 0.3935) 10.175 - 10.196 (0.4006 - 0.4014)
Interference fit of valve guide 0.027 - 0.059 (0.0011 - 0.0023)
Items Standard Limit
Stem to guide clearance
Intake 0.020 - 0.053 (0.0008 - 0.0021) 0.08 (0.0031)
Exhaust 0.030 - 0.063 (0.0012 - 0.0025) 0.09 (0.0035)
Projection length “L”
Intake 12.6 - 12.8 (0.496 - 0.504)
Exhaust 12.5 - 12.9 (0.492 - 0.508)

Cylinder head seat recess diameter (D)
Intake 38.000 - 38.016 (1.4961 - 1.4967) 38.500 - 38.516 (1.5157 - 1.5164)
Exhaust 32.200 - 32.216 (1.2677 - 1.2683) 32.700 - 32.716 (1.2874 - 1.2880)
Valve seat interference fit
Intake 0.081 - 0.113 (0.0032 - 0.0044)
Exhaust 0.064 - 0.096 (0.0025 - 0.0038)
Valve seat diameter (d)
Intake 38.097 - 38.113 (1.4999 - 1.5005) 38.597 - 38.613 (1.5196 - 1.5202)
Exhaust 32.280 - 32.296 (1.2709 - 1.2715) 32.780 - 32.796 (1.2905 - 1.2912)

Valve Spring
Free height mm (in) 50.58 (1.9913)
Pressure N (kg, lb) at height mm (in)
Installation 165.8 - 187.0 (16.9 - 19.1, 37 - 42) at 37.0 (1.457)
Valve open 314.8 - 355.0 (32.1 - 36.2, 71 - 80) at 28.2 (1.110)
Out-of-square mm (in) Less than 2.2 (0.087)

CYLINDER BLOCK
Surface flatness
LImit 0.1 (0.004)
Main bearing housing inside diameter Standard 68.944 - 68.968 (2.7143 - 2.7153)
Cylinder bore diameter
Standard
Grade No. 1 98.000 - 98.010 (3.8583 - 3.8587)
Grade No. 2 98.010 - 98.020 (3.8587 - 3.8590)
Grade No. 3 98.020 - 98.030 (3.8590 - 3.8594)
Wear limit 0.20 (0.0079)
Out-of-round (Difference between X and Y)
Limit
0.015 (0.0006)
Taper (Difference between A and C) 0.010 (0.0004)

PISTON, PISTON RING AND PISTON PIN Available Piston
Piston skirt diameter “A”
Grade No. 1 97.980 - 97.990 (3.8575 - 3.8579) —
Grade No. 2 97.990 - 98.000 (3.8579 - 3.8583) —
Grade No. 3 98.000 - 98.010 (3.8583 - 3.8587) —
Grade No. 0
(Service)
98.180 - 98.210 (3.8653 - 3.8665) 0.20 (0.0079)
“H” dimension 39 (1.54) —
Piston pin hole diameter Grade No. 0 21.993 - 21.999 (0.8659 - 0.8661) —
Piston to cylinder bore clearance 0.010 - 0.030 (0.0004 - 0.0012) 0.08 (0.0031)

Piston Ring
Side clearance
Top 0.035 - 0.085 (0.0014 - 0.0033) 0.11 (0.0043)
2nd 0.030 - 0.070 (0.0012 - 0.0028) 0.10 (0.0039)
Oil ring 0.015 - 0.050 (0.0006 - 0.0020) —
End gap
Top 0.23 - 0.33 (0.0091 - 0.0130) 0.56 (0.0220)
2nd 0.25 - 0.40 (0.0098 - 0.0157) 0.52 (0.0205)
Oil ring 0.20 - 0.60 (0.0079 - 0.0236) 0.96 (0.0378)

Piston Pin
Unit: mm (in)
Items Standard
Piston pin diameter Grade No. 0 21.989 - 21.995 (0.8657 - 0.8659)
Piston to piston pin clearance 0.002 - 0.006 (0.0001 - 0.0002)
Connecting rod bushing oil clearance 0.005 - 0.017 (0.0002 - 0.0007)

CONNECTING ROD
Unit: mm (in)
Items Standard Limit
Center distance 154.45 - 154.55 (6.08 - 6.08) —
Bend [per 100 (3.94)] — 0.15 (0.0059)
Torsion [per 100 (3.94)] — 0.30 (0.0118)
Connecting rod bushing inside diameter*
(small end)
Grade No. 0 22.000 - 22.006 (0.8661 - 0.8664) —
Connecting rod big end inside diameter (without bearing) 57.000 - 57.013 (2.2441 - 2.2446) —
Side clearance 0.20 - 0.40 (0.0079 - 0.0157) 0.40 (0.0157)

SERVICE DATA AND SPECIFICATIONS (SDS)
Pin journal dia. “Dp” Standard
Grade No. 0 53.968 - 53.974 (2.1247 - 2.1250)
Grade No. 1 53.962 - 53.968 (2.1245 - 2.1247)
Grade No. 2 53.956 - 53.962 (2.1243 - 2.1245)
Center distance “r” 45.96 - 46.04 (1.8094 - 1.8126)
Out-of-round (Difference between X and Y)
Limit
0.002 (0.0001)
Taper (Difference between A and B) 0.002 (0.0001)
Runout [TIR*] Less than 0.05 (0.002)
Crankshaft end play
Standard 0.10 - 0.26 (0.0039 - 0.0102)
Limit 0.30 (0.0118)

Main Bearing Oil Clearance
Unit: mm (in)
Connecting Rod Bearing
Undersize
Unit: mm (in)
Connecting Rod Bearing Oil Clearance
Unit: mm (in)
Items Standard Limit
Main bearing oil clearance
No.1 and 5 0.001 - 0.011 (0.00004 - 0.0004) 0.021 (0.0008)
No.2, 3 and 4 0.007 - 0.017 (0.0003 - 0.0007) 0.027 (0.0011)
Grade number Thickness “T” mm (in) Identification color (mark)
0 1.500 - 1.503 (0.0591 - 0.0592) Black
1 1.503 - 1.506 (0.0592 - 0.0593) Brown
2 1.506 - 1.509 (0.0593 - 0.0594) Green
3 1.509 - 1.512 (0.0594 - 0.0595) Yellow
Undersize Thickness Crank pin journal diameter “Dp”
0.25 (0.0098) 1.627 - 1.635 (0.0641 - 0.0644) Grind so that bearing clearance is the specified value.
Items Standard Limit
Connecting rod bearing oil clearance 0.020 - 0.039 (0.0008 - 0.0015) 0.055 (0.0022)

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