AMC Eagle Den Forum

The Shop => Altered Eagles => Topic started by: rubberducky1774 on March 20, 2012, 11:00:26 PM

Title: 360 swap exhaust problems
Post by: rubberducky1774 on March 20, 2012, 11:00:26 PM
how did you route the passenger side exhaust?  mine is hitting the frame rail and cant find any shorty headers
Title: Re: 360 swap exhaust problems
Post by: 68AMXGOPAC on March 21, 2012, 08:59:23 AM
What year 360 are you useing ? I had a set of shorties on my 95 Dodge ram with a 360.......I know it may not be the same as what your application is, but just tossing it out there.
Title: Re: 360 swap exhaust problems
Post by: eaglefreek on March 21, 2012, 09:24:08 AM
What year 360 are you useing ? I had a set of shorties on my 95 Dodge ram with a 360.......I know it may not be the same as what your application is, but just tossing it out there.

I would assume he is installing an AMC 360 not a Chrysler 360. Two totally different engines.
Title: Re: 360 swap exhaust problems
Post by: captspillane on March 21, 2012, 12:13:55 PM
The offset for the 258 is about 1-1/2" to the passenger side. This won't work with the 360. You need to decrease the offset to about 3/4". You'll have to cut the old engine mounts off the crossmember and make new ones. You need to bolt the engine to the existing transmission and then slide it sideways to know where to put the mounts on the crossmember.

Most people shave the strut rod bracket a little bit as well. This picture is from a V8 conversion sold on ebay. Mine will have a similar proximity to the bracket. Instead of grinding at it, I'd like to take the hump out of the bracket and make it flush against the subframe, with a notch in that lip in the way, but that would be alot of cutting and welding for very little gain. I'll probably just shave it like this.

(http://i1181.photobucket.com/albums/x427/captspillane/Eagleweb%20Postings/304Eagle.jpg)
Title: Re: 360 swap exhaust problems
Post by: 68AMXGOPAC on March 21, 2012, 02:08:32 PM
What year 360 are you useing ? I had a set of shorties on my 95 Dodge ram with a 360.......I know it may not be the same as what your application is, but just tossing it out there.

I would assume he is installing an AMC 360 not a Chrysler 360. Two totally different engines.
Yeah , I would be so corrected,lol, didn't even give that any thought. Thanks.
Title: Re: 360 swap exhaust problems
Post by: carnuck on March 21, 2012, 08:09:01 PM
I planned to run mine forwards (with a LH manifold) and then back.
Title: Re: 360 swap exhaust problems
Post by: rubberducky1774 on March 23, 2012, 01:57:54 PM
go it figured out i just cut the strut rod bracket off and made a new one
Title: Re: 360 swap exhaust problems
Post by: rubberducky1774 on May 02, 2012, 11:35:00 PM
im having a heck of a time trying to get an exhaust done on my eagle.  i cant figure out how to get the driverside exhaust around the drive shaft.  does anyone have any ideas on how to go about it? or happen to have a picture of how they did it?
Title: Re: 360 swap exhaust problems
Post by: mudkicker715 on May 03, 2012, 06:37:40 AM
Is yours still stock other than the motor. if it is it will be a pita. take it in and have it done. however i did one to my 304 eagle but its about as tall as i am. also just about the same thing is putting a 4.0 header/manifold from a jeep on a stock height eagle. to do that i used a downpipe from who knows what. it worked however.

any of these pics you want just ask.
Title: Re: 360 swap exhaust problems
Post by: rubberducky1774 on May 03, 2012, 10:10:36 AM
any pictures you got would help.  I did talk to the exhaust place in town and they said about 650 it to do the exhaust because I would need cat converters even though I don't need emissions
Title: Re: 360 swap exhaust problems
Post by: mudkicker715 on May 03, 2012, 11:27:46 AM
(http://i216.photobucket.com/albums/cc55/mudkicker715/2012-05-03101646.jpg)
 (http://i216.photobucket.com/albums/cc55/mudkicker715/2012-05-03101657.jpg)
 (http://i216.photobucket.com/albums/cc55/mudkicker715/2012-05-03101619.jpg)

thats what i have for the stroker 6 with mid 90's cherokee header type thing. i looked at my 304 powered eagle and it was all straight forward no issue as it also is sas 'ed. so i won't with that photo op especially since the ground is wet.
Title: Re: 360 swap exhaust problems
Post by: hypereagle on May 04, 2012, 08:58:28 PM
im having a heck of a time trying to get an exhaust done on my eagle.  i cant figure out how to get the driverside exhaust around the drive shaft.  does anyone have any ideas on how to go about it? or happen to have a picture of how they did it?
There are pics of what was done with my 360 in my SX4  to be found in members products.

Title: Re: 360 swap exhaust problems
Post by: vangremlin on May 05, 2012, 06:17:47 PM
thats what i have for the stroker 6 with mid 90's cherokee header type thing. i looked at my 304 powered eagle and it was all straight forward no issue as it also is sas 'ed. so i won't with that photo op especially since the ground is wet.

Mudkicker did you have to modify any of the brackets for the front drive train with this setup?  Thanks
Title: Re: 360 swap exhaust problems
Post by: mudkicker715 on May 05, 2012, 06:53:19 PM
The axle side bracket is completely flat. no angles. hard to pic it. than its spaced out approiately
Title: Re: 360 swap exhaust problems
Post by: rubberducky1774 on May 05, 2012, 07:22:12 PM
what size exhaust you think I should run foe the 360?  that's what will decide if I can run it by the bell housing
Title: Re: 360 swap exhaust problems
Post by: BenM on May 05, 2012, 09:00:26 PM
I would use 2" and go to 2.5" after the Y where they come together, but I don't like to be showy. Plus, I don't believe I'd ever notice the difference with anything larger. I wouldn't even sweat 1.75" if I needed it to clear parts around the motor.

I don't spend a lot of time at high RPM and wide open throttle. The smaller pipes may help with off-idle torque as well.
Title: Re: 360 swap exhaust problems
Post by: mudkicker715 on May 05, 2012, 10:02:46 PM
The 304 i ran 2" but as stated i had all the room i wanted.
 the stroker 6 was tight for 2". i wanted 2.25", doesn't fit.

again i only compare the mid ninety's kee manifold since it looks to be placed comparitively to the v8.
Title: Re: 360 swap exhaust problems
Post by: carnuck on May 06, 2012, 05:27:34 PM
On my Jtruck I ovalled the pipe to fit between the frame and floor so I could use the space between the frame rails for air tanks and stuff (MAN I miss my J4000!)
Title: Re: 360 swap exhaust problems
Post by: The Dark Side of Will on December 25, 2017, 08:37:44 PM
The offset for the 258 is about 1-1/2" to the passenger side. This won't work with the 360. You need to decrease the offset to about 3/4". You'll have to cut the old engine mounts off the crossmember and make new ones. You need to bolt the engine to the existing transmission and then slide it sideways to know where to put the mounts on the crossmember.

Most people shave the strut rod bracket a little bit as well. This picture is from a V8 conversion sold on ebay. Mine will have a similar proximity to the bracket. Instead of grinding at it, I'd like to take the hump out of the bracket and make it flush against the subframe, with a notch in that lip in the way, but that would be alot of cutting and welding for very little gain. I'll probably just shave it like this.

(http://i1181.photobucket.com/albums/x427/captspillane/Eagleweb%20Postings/304Eagle.jpg)

I will disagree with you on a technicality, BUT agree with your point.

If the 360 is centered between the mount pads on the crossmember, then it is offset to the RIGHT by 1 inch. The engine needs to be shifted left by an inch to be centered between the frame rails.

Because the AMC/Jeep inline 6 block bulges out on the right more than it does to the left, the original position of the crankshaft is centered between the frame rails.