Jeep AMC I4 Specs: 4.00 x 3.00 in

Jeep AMC I4 specs: 4.00 x 3.00 in (101.6 x 76.2 mm) bore and stroke, shared by all 7 versions. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	150 ci
Cylinders	4
Bore	4.000"
Stroke	3.000"
Compression	9.2:1
Advertised power	105–130 hp
Years	1984–2002

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
150	150 ci	4" × 3"	9.2:1	105
AMC/Jeep 2.5	150 ci	4" × 3"	—	120
AMC 150	150 ci	4" × 3"	—	105–130
AMC 150 1-bbl	150 ci	4" × 3"	—	105
AMC 150 TBI	150 ci	4" × 3"	—	117–121
AMC 150 MPI	150 ci	4" × 3"	—	123
AMC 150 / 2.5L Power Tech I-4	150 ci	4" × 3"	—	120

Factory cars with a AMC I4

• Jeep Cherokee: 1984, 105 hp; 1985, 105 hp; 1986, 117 hp; 1987, 121 hp; 1988, 121 hp; 1989, 121 hp; 1990, 121 hp; 1991, 130 hp; 1992, 130 hp; 1993, 130 hp; 1994, 130 hp; 1995, 130 hp; 1996, 130 hp; 1997, 125 hp; 1998, 125 hp; 1999, 125 hp; 2000, 125 hp
• Jeep CJ: 1984, 86–105 hp; 1985, 86–105 hp; 1986, 86–105 hp
• Jeep Comanche: 1986, 117 hp; 1987, 121 hp; 1988, 121 hp; 1989, 121 hp; 1990, 121 hp; 1991; 1992
• Jeep Wrangler: 1987, 117 hp; 1988, 117 hp; 1989, 117 hp; 1990, 117 hp; 1991, 123 hp; 1992, 123 hp; 1993, 123 hp; 1994, 123 hp; 1995, 123 hp; 1997, 120 hp; 1998, 120 hp; 1999, 120 hp; 2000, 120 hp; 2001, 120 hp; 2002, 120 hp
• Dodge Dakota: 1996, 120 hp; 1997, 120 hp; 1998, 120 hp; 1999, 120 hp; 2000, 120 hp; 2001, 120 hp; 2002, 120 hp

What varies across the family

All are oversquare — bore larger than stroke, which favours revs over low-end torque.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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