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Physically, the answer is yes. the 1990 and the 1991 comanche, however have different engine management systems. the 90 is supposed to have had the Renix fuel injection system and the 91 switched to the Chrysler system. You would need to make sure the sensors on the engine were switched to match the vehicle. Also, any 4.0L HO from '91-up from the XJ, TJ, ZJ and even WJ vehicles should be a bolt in as long as you match the sensors. Later model engines are said to have stouter support ribbing on the blocks.
What else can I help you with?
Would an engine from a 1988 jeep Comanche go into a 1991 Jeep Cherokee?
no. 1986 to 1990 sorry
Will a 1990 mustang hatchback suspension interchange with 1991 convertible mustang?
yes it will
Will a 1991 eagle talon engine interchange with a 1992 eagle talon?
No
What year interchange with 1991 Honda Accord?
The 1991 is the 4th generation Accord. Most parts on a 1990 to 1993 are interchangeable.
Will an 1991 jeep 4.0 engine intake manifold interchange with a1991 jeep engine?
Yes if it is a 4.0.
When did Altrincham Interchange end?
Altrincham Interchange ended in 1991.
Will a 22R 1991 Toyota engine interchange with a 1984 Toyota pickup. explain how do i put a 22re into 1984 what do i need to do?
yes
Is a 3.0 engine and 3.8 engine interchangable on a 1991 Ford Taurus?
Interchange would only be possible if you had a ENTIRE donor car, harness, transmission, axles ,mounts.etc
Is the motor in a 1991 Honda interchangeable with a 1992 Honda motor?
The motor in a 1991 Accord is interchangeable with the engine in a 1992 Accord. They are only slightly different but will still interchange with no problems.
What is the difference between a 1990 and 1991 Nissan 240sx engine?
1990 is ka24e, single overhead cam, 1991 is ka24de, dual overhead cam.
When was Workgroup for Electronic Data Interchange created?
Workgroup for Electronic Data Interchange was created in 1991.
What years Cherokee fit the Comanche?
1986 to 1991
