Can I replace 4.7 With a 4.0 They are both 1999 jeep Grand Cherokee

Asked by Dec 16, 2012 at 12:19 AM about the Jeep Grand Cherokee

Question type: Car Customization

What all I need to change over

4 Answers

1,725

Anything is possible, just understand that the list modifications and changes would be long, including the entire computer management system, It would be far more cost effective to rebuild the 4.7 V8 to your exact specifications, making it more durable and outperform the 6 cyl 4.0.

3 of 3 people found this helpful.
Best Answer Mark helpful

Thanks for the Advice, Problem is I do not have the original block that came out.

1,725

You're most welcome. Grand Cherokees with 4.7L engines can be found at local Pick-a-part / Pull-a-part type wrecking yards, and an entire engine can be had for UNDER $300 with warranty, probably slightly more at a regular salvage yard. Also, you can check craigslist etc I have seen them for sale there too by someone who totaled their Jeep and only had liability so they were parting it out.

1 of 1 people found this helpful.

They totaled it because the 4.7 was junk and not worth repairing AGAIN !!!

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