Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2021 >> Grand Cherokee L Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (5.7L - Engine (Service Information)) >> Technical Specifications >> Engine Specifications

Engine Specifications

WARNING: This page is about a different variant/trim than selected.
EAGLE ENGINE - 90° V-8 OHV

DESCRIPTION SPECIFICATION
  Metric Standard
Displacement 5.7 Liters 348 CID
Bore 99.5 mm 3.92 in.
Stroke 90.9 mm 3.58 in.
Compression Ratio 10.5:1
Max. Variation Between Cylinders 25%
Firing Order 1-8-4-3-6-5-7-2
Lubrication Pressure Feed - Full Flow Filtration
Cooling System Liquid Cooled
Cylinder Block Cast Iron
Cylinder Head Aluminum
Crankshaft Nodular Iron
Camshaft Cast Iron
Pistons Aluminum Alloy
Connecting Rods Powdered Metal
CYLINDER BLOCK

DESCRIPTION SPECIFICATION
  Metric Standard
Cylinder Bore Diameter 99.50 mm 3.92 in.
Out of Round (MAX) 0.0076 mm 0.0003 in.
Taper (MAX) 0.0127 mm 0.0005 in.
Lifter Bore Diameter 21.45 - 21.425 mm 0.8444 - 0.8435 in.
PISTONS

DESCRIPTION SPECIFICATION
  Metric Standard
Clearance    
Measured at 38.0 mm (1.5 in.) Below Deck 0.031 - 0.058 mm 0.0012 - 0.0023 in.
Ring Groove Diameter  
Top Groove 90.4 - 90.6 mm 3.56 - 3.57 in.
Second Groove 88.4 - 88.7 mm 3.48 - 3.49 in.
Weight 420 grams 14.81 oz
Piston Length 53.3 mm 2.10 in.
Ring Groove Width  
No. 1 1.23 - 1.26 mm 0.048 - 0.0496 in
No. 2 1.23 - 1.25 mm 0.048 - 0.0492 in.
No. 3 2.03 - 2.05 mm 0.079 - 0.080 in.
PISTON PINS

DESCRIPTION SPECIFICATION
  Metric Standard
Clearance In Piston 0.009 - 0.017 mm 0.0004 - 0.0007 in.
Diameter 24.004 - 24.007 mm 0.945 - 0.9451 in.
Length 74.85 - 75.15 mm 2.95 - 2.96 in.
PISTON RINGS

DESCRIPTION SPECIFICATION
  Metric Standard
Ring Gap  
Top Compression Ring 0.40 - 0.55 mm 0.015 - 0.021 in.
Second Compression Ring 0.24 - 0.51 mm 0.009 - 0.020 in.
Oil Control Rails 0.15 - 0.66 mm 0.0059 - 0.0259 in.
Side Clearance  
Top Compression Ring 0.04 - 0.09 mm 0.001 - 0.0035 in.
Second Compression Ring 0.04 -.08 mm 0.001 - 0.0031 in.
Oil Control Rails 0.06 - 0.21 mm 0.002 - 0.008 in.
Ring Width  
Top Compression Ring 1.17 - 1.19 mm 0.0460 - 0.0468 in.
Second Compression Ring 1.17 - 1.19 mm 0.0460 - 0.0468 in.
Oil Control Rails 0.387 - 0.430 mm 0.015 - 0.017 in.
CONNECTING RODS

DESCRIPTION SPECIFICATION
  Metric Standard
Piston Pin Bore Diameter 23.955 - 23.975 mm 0.9431 - 0.9439 in.
Side Clearance 0.06 - 0.38 mm 0.002 - 0.015 in.
CRANKSHAFT

DESCRIPTION SPECIFICATION
  Metric Standard
Main Bearing Journal Diameter 64.988 - 65.012 mm 2.5585 - 2.5595 in.
Bearing Clearance 0.023 - 0.051 mm 0.0009 - 0.002 in.
Out of Round (MAX) 0.005 mm 0.0002 in.
Taper (MAX) 0.003 mm 0.0001 in.
End Play 0.052 - 0.282 mm 0.002 - 0.011 in.
End Play (MAX) 0.282 mm 0.011 in.
Connecting Rod Journal Diameter 53.992 - 54.008 mm 2.126 in.
Bearing Clearance 0.020 - 0.060 mm 0.0007 - 0.0023 in.
Out of Round (MAX) 0.005 mm 0.0002 in.
Taper (MAX) 0.003 mm 0.0001 in.
CAMSHAFT

DESCRIPTION SPECIFICATION
  Metric Standard
Bearing Journal Diameter  
No. 1 61.655 - 61.680 mm 2.4273 - 2.4283 in.
No. 2 57.78 - 57.80 mm 2.2748 - 2.2755 in.
No. 3 57.38 - 57.40 mm 2.2590 - 2.2598 in.
No. 4 56.98 - 57.00 mm 2.2433 - 2.2440 in.
No. 5 43.613 - 43.633 mm 1.7170 - 1.7178 in.
Bearing To Journal Clearance Standard  
No. 1 0.03 - 0.07 mm 0.0011 - 0.0027 in.
No. 2 0.050 -0.090 mm 0.0019 - 0.0035 in.
No. 3 0.040 - 0.080 mm .0015 - 0.0031 in.
No. 4 0.050 - 0.090 mm 0.0019 - 0.0035 in.
No. 5 0.040 - 0.080 mm 0.0015 - 0.0031 in.
Camshaft End Play .0080 - 0.290 mm 0.0031 - 0.0114 in.
Duration 290°
Valve Lift (@ zero lash)  
Intake 13.75 mm 0.5413 in.
Exhaust 12.70 mm 0.5000 in.
VALVE TIMING

DESCRIPTION SPECIFICATION
Intake  
Opens (BTDC) 28.2°
Closes (ATDC) 239.8°
Duration 268°
Exhaust  
Opens (BTDC) 274.2°
Closes (ATDC) 15.8°
Valve Overlap 44°
CYLINDER HEAD

DESCRIPTION SPECIFICATION
  Metric Standard
Valve Seat Angle 44.5° - 45.0°
Valve Seat Runout (MAX) 0.04 mm 0.0016 in.
Valve Seat Width (finish)  
Intake 1.18 - 1.62 mm 0.0638 in.
Exhaust 1.48 - 1.92 mm 0.0583 - 0.0756 in.
Guide Bore Diameter (Intake) 7.975 - 7.997 mm 0.3139 - 0.3148 in.
Guide Bore Diameter (Exhaust) 7.975 - 7.990 mm 0.3139 - 0.3146 in.
HYDRAULIC TAPPETS

DESCRIPTION SPECIFICATION
Metric Standard
Body Diameter 21.387 - 21.405 mm 0.8420 - 0.8427 in.
Clearance (to bore) 0.020 - 0.063 mm 0.0008 - 0.0025 in.
Dry Lash 3.0 mm (at the valve) 0.1181 in. (at the valve)
VALVES

DESCRIPTION SPECIFICATION
  Metric Standard
Face Angle  
Intake 45.5° - 46.0°
Exhaust 45.0° - 45.5°
Head Diameter  
Intake 51.94 - 52.20 mm 2.04 - 2.06 in.
Exhaust 39.27 - 39.53 mm 1.55 - 1.56 in.
Length (overall)  
Intake 130.87 - 131.51 mm 5.152 - 5.178 in.
Exhaust 130.101 - 130.741 mm 5.122 - 5.147 in.
Stem Diameter  
Intake 7.935 - 7.953 mm 0.312 - 0.313 in.
Exhaust 7.932 - 7.950 mm 0.312 - 0.313 in.
Stem - to - Guide Clearance  
Intake 0.022 - 0.062 mm 0.0009 - 0.0024 in.
Exhaust 0.025 - 0.058 mm 0.0010 - 0.0023 in.
VALVE SPRING

DESCRIPTION SPECIFICATION
  Metric Standard
Spring Force (valve closed) 520.0 N +/- 26.0 N @ 50.5 mm 116.9 lbs +/- 5.85 lbs. @ 1.988 in.
Spring Force (valve open) 1475.0 N +/- 66.0 N @ 37.25 mm. 331.6 lbs. +/- 15 lbs. @ 1.467 in.
Free Length (approx). 60.2 mm 2.37 in.
Number of Coils 8.35
Wire Diameter 5.65 X 4.51 mm 0.222 - 0.178 in.
Installed Height (spring seat to bottom of retainer) 50.0 mm 1.97 in.
OIL PUMP

DESCRIPTION SPECIFICATION
  Metric Standard
Clearance Over Rotors (MAX) 0.095 mm 0.0038 in.
Outer Rotor to Pump Body Clearance (MAX) 0.235 mm 0.009 in.
Tip Clearance Between Rotors (MAX) 0.150 mm 0.006 in.
OIL PRESSURE

DESCRIPTION SPECIFICATION
  Metric Standard
At Curb Idle Speed (MIN)* 25 kPa 4 psi
@ 3000 rpm 170 - 758 kPa 25 - 110 psi
* CAUTION: If pressure is zero at curb idle, DO NOT run engine. 
scientia non olet · About Mike's Workshop Manuals