Chrysler 8.0 L (488 CID) Magnum V10

Chrysler 8.0 L (488 CID) Magnum V10The Chrysler 488 Magnum is a 8.0 L (7,997 cc, 488 cu·in) natural aspirated V10 90° four-stroke liquid-cooled internal combustion gasoline engine, manufactured by Chrysler Corporation from 1994 to 2003.

It has a 101.6 mm (4 in) cylinder bore and 98.6 mm (3.88 in) piston stroke. The compression ratio rating is 8.4:1.

The 488 Magnum engine produced from 305 PS (224 kW; 300 HP) at 4,100 rpm to 314 PS (231 kW; 310 HP) at 4,100 rpm of maximum horsepower and 610 N·m (62.2 kg·m, 449.6 ft·lb) at 2,400 rpm of maximum torque.

The Chrysler 360 Magnum V8 engine features:

  • Ten-cylinder V-type 90°
  • Cast-iron cylinder block and heads
  • Nodular iron crankshaft and camshaft
  • Aluminum alloy pistons with two compression and single oil ring
  • Forged steel connecting rons
  • OHV design with single camshaft
  • Distributor-less electronic ignition system
  • Multiple-point fuel injection system

General information

Engine Specifications
Engine model8.0 L Magnum
Engine type4-stroke, OHV, V10 90°
Displacement8.0 L, 7,997 cm3, (488 cu·in)
Max. horsepower From 305 PS (224 kW; 300 HP) at 4,100 rpm
to 314 PS (231 kW; 310 HP) at 4,100 rpm
Max. torque 610 N·m (62.2 kg·m, 449.6 ft·lb) at 2,400 rpm
Cooling systemLiquid-cooled
Lubricating systemPressurized lubrication
Ignition systemDistributor-less electronic ignition system
Fuel systemMultiple-point fuel injection system
Fuel usedUnleaded gasoline (octane number 86 or higher)
Firing order:1-10-9-4-3-6-5-8-7-2
Dimensions (L x W X H)
Dry weight

Cylinder Block and Head

Cylinder block
Cylinder block alloy:Cast-iron
Compression ratio:8.4:1
Cylinder bore:101.6 mm (4 in)
Piston stroke:98.6 mm (3.88 in)
Cylinder internal diameter (standard):101.600-101.610 mm (4-4.0004 in)
Number of piston rings (compression / oil):2/1
Connecting rod small end diameter (standard):24.940-24.978 mm (0.9819-0.9834 in)
Piston pin diameter:24.996-25.001 mm (0.9841-0.9843 in)
Side clearance (Top):0.074-0.097 mm (0.0029-0.0038 in)
Side clearance (Second):0.074-0.097 mm (0.0029-0.0038 in)
Side clearance (Oil):0.185-0.245 mm (0.0073-0.0096 in)
Ring end gap (Top):0.255-0.508 mm (0.01-0.02 in)
Ring end gap (Second):0.255-0.508 mm (0.01-0.02 in)
Ring end gap (Oil):0.380-1.397 mm (0.015-0.055 in)
Number of main bearings:6
Crankshaft main journal diameter:76.187-76.213 mm (2.9995-3.0005 in)
Crankpin journal diameter:53.950-53.975 mm (2.124-2.125 in)
Crankshaft center distance:49.3 mm (1.94 in)
Cylinder head
Cylinder head alloy:Cast-iron
Valve arrangement:OHV, Chain driven
Valves:2, (20 valves in total)
Intake timig:246°
Exhaust timig:265°
Valve head diameter (INTAKE):48.640-48.900 mm (1.915-1.9252 in)
Valve head diameter (EXHAUST):41.123-41.377 mm (1.619-1.629 in)
Valve length (INTAKE):145.190-145.820 mm (5.7161-5.7409 in)
Valve length (EXHAUST):145.540-146.180 mm (5.7299-5.7551 in)
Valve steam diameter (INTAKE):7.900-7.920 mm (0.311-0.3118 in)
Valve steam diameter (EXHAUST):7.900-7.920 mm (0.311-0.3118 in)
Valve spring free length (INTAKE):49.962 mm (1.967 in)
Valve spring free length (EXHAUST):49.962 mm (1.967 in)

Tightening procedure and torque specs

Main bearing beam bolts: Step 1: 27 Nm; 2.7 kg·m; 20 ft·lb in two-three stages
Step 2: 115 Nm; 11.5 kg·m; 85 ft·lb in two-three stages
Connecting rod bearing bolts61 Nm; 6.0 kg·m; 45 ft·lb
Cylinder head Step 1: 68 Nm; 6.8 kg·m; 50 ft·lb
Step 2: 143 Nm; 14.0 kg·m; 105 ft·lb
Cylinder head cover bolts6 Nm; 1.6 kg·m; 9.0 ft·lb

Service Data

Cylinder compression:12.0-13.3 kg/cm2, (1,170-1,310 kPa, 170-190 psi)
Oil system
Lubrication system:Pressurized lubrication
Oil type:API: SH or SH/CD
Recommended oil:SAE 10W-30
Oil capacity: With oil filter: 6.6 L (7.0 US. qt, 5.81 Imp. qt.)
Oil pressure: 83-172 kPA (0.8-1.7 kg/cm3, 12-25 psi) at Idle rpm
345-414 kPA (3.5-4.2 kg/cm3, 50-60 psi) at 3,000 rpm
Fuel system
Type:Multiple-point fuel injection system
Ignition system
Type:Electronic ignition system with mechanical distributor
Spark plug:Champion QC9MC4
Spark plug gap:1.15 mm (0.045 in)
Spark plug torque:41.0 N·m (4.2 kg·m, 30.2 ft·lb)


ModelYears Produced
Dodge Ram 2500/3500 Pickup1994–2003
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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