I own a 1998 Dodge Durango with a 318 with almost 200k miles. I really
put in a 360. Have any of you done this before??? I am trying
to find out what
snags I am going to encounter doing this. My biggest
concern is the fuel supply
and computer. I am pretty certain that the
360 will go in place of the 318
pretty easily. If any of you have any
info or websites you could help me with,
it would be greatly
plaidfro at hotmail dot com
While the engine will fit, there are some differences. The two most
important ones are the computer and the fact that the 360 is externally
balanced while the 318 is internally balanced. The fuel curves are
different for the 360 and the 318 computer may not give you satisfactory
performance and I'm not sure about the legal situation of swapping the
computer from a different vehicle. As for the balancing, IIRC you will need
a torque converter balanced for the 360.
If at first you don't succeed, you're not cut out for skydiving
"plaidfro" < email@example.com> wrote in message
Thank you all for your input... I'll have to let you guys know how it
Looks like I will go with the 360 5.9L Long Block, no real
need for the
performance mods. I just want more power to tow a trailer,
My 318 has about 200k miles on it and the rear seal is starting to leak
needs to be pulled anyways, hence the question of upgrading to the
I have successfully done this. You have a couple of concerns. The 360 is
externally balanced, so the flex plate will have to have to have the bob
weight. In the case of a manual gear, you will need to use a 360 flywheel or
mill the corresponding volume of iron off the opposite side of the flywheel
that the bob weight is on the flexplate. I did this and it just worked.
Depending on the year, you may have to drill and tap a 3/8 NPT thread in the
top of the inlet manifold to accomodate a thermal sensor. You may use the
5.2 computer with the 5.9, but you will have to change the injectors to the
5.9 flavor. In my instance, I had to change the connectors on the injector
harness as they are also different. This is a very gratifying change. You
will have lots more low end torque, more high end power and better economy
by 2 MPG. Work that out!
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