6.9L IDI vs Cummins 12v vs GM 6.2L

 

 

 

6.9L IDI International

5.9L Cummins 12v

6.2L General Motors

Production Years:

1983 - 1987

1989 - 1998

1982 - 1993

Manufacturer:

International Harvester

Cummins

Detroit Diesel

Block/Head Material:

Iron/Iron

Iron/Iron

Iron/Iron

Configuration:

V-8

Inline 6

V-8

Displacement:

6.9 liters , 420 cubic inches

5.9 liters, 359 cubic inches

6.2 liters, 379 cubic inches

Compression Ratio:

21.5:1 (20.7:1 for 1983 only)

17.0:1

21.5:1

Bore x Stroke:

4.00 x 4.18 inches

4.02 x 4.72 inches

3.98 x 3.80 inches

Injection System:

Indirect injection (IDI)

Direct Injection

Indirect injection (IDI)

Aspiration:

Naturally aspirated

Holset Turbocharger

Naturally aspirated

Valvetrain:

over head valve, 2 valves per cylinder

over head valve, 2 valves per cylinder

over head valve, 2 valves per cylinder

Weight:

860 lbs (approx.)

970 lbs (approx.)

700 lbs (approx.)

Peak Horsepower:

170 horsepower @ 3,300 RPM

160 horsepower @ 2,500 RPM (1989)

143 horsepower @ 3,600 RPM

Peak Torque:

338 lb-ft @ 1,400 RPM

400 lb-ft. @ 1,600 RPM (1989)

257 lb-ft @ 2,000 RPM