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-   -   258 swap (https://www.jeepscanada.com/jeep-mailing-list-32/258-swap-48645/)

L.W. \(Bill\) Hughes III 09-15-2007 01:05 PM

Re: 258 swap
 
I would bet there's a difference between the Chevy four banger and the
American Motors six's frame mounts, and maybe a difference between the Borg
Warner T4 and T5 rear mount: http://www.----------.com/cj7stablizerMount.jpg
Give http://www.advanceadapters.com/catalog/003.html a call.
God Bless America, Bill O|||||||O
mailto:--------------------

"CJ7 MrBeans" <cjrini2003@yahoo.com> wrote in message
news:1189872526.339516.50750@o80g2000hse.googlegro ups.com...
> Hello all-
> Currently I am replacing a 151 wutg a 258 w/T5/Dana 300 into a CJ7 and
> seem to running into an issue. Once the Transmission was bolted onto
> the crossmember bracket and I came up to take a look it was apparent
> that the engine was tilted back, so much so the valve cover is resting
> against the back of the engine compartment. It seems that the engine
> needs to be lowered to the same plane as the Transmission however this
> is several inches. I have several thoughts such as 1) This Trans for
> some reason doesn't work with the 258 2) There may be another
> crossmember bracket that raised the TM/TC (not likely) 3)The chasis
> engine mount brackets are bolted in the wrong place/wrong sides of the
> chassis or I do not have the correct one2 (bought from reputable 4wd
> dealer and said they came from a CJ w/258). This is my first attempt
> at rebuilding and am certainly hoping that I made a novice mistake.
> Any guidance, pics of 258 chasiss engine mount brackets, would be
> extremely appreciated. Thank you!
>




--
Posted via a free Usenet account from http://www.teranews.com


L.W. \(Bill\) Hughes III 09-15-2007 01:05 PM

Re: 258 swap
 
I would bet there's a difference between the Chevy four banger and the
American Motors six's frame mounts, and maybe a difference between the Borg
Warner T4 and T5 rear mount: http://www.----------.com/cj7stablizerMount.jpg
Give http://www.advanceadapters.com/catalog/003.html a call.
God Bless America, Bill O|||||||O
mailto:--------------------

"CJ7 MrBeans" <cjrini2003@yahoo.com> wrote in message
news:1189872526.339516.50750@o80g2000hse.googlegro ups.com...
> Hello all-
> Currently I am replacing a 151 wutg a 258 w/T5/Dana 300 into a CJ7 and
> seem to running into an issue. Once the Transmission was bolted onto
> the crossmember bracket and I came up to take a look it was apparent
> that the engine was tilted back, so much so the valve cover is resting
> against the back of the engine compartment. It seems that the engine
> needs to be lowered to the same plane as the Transmission however this
> is several inches. I have several thoughts such as 1) This Trans for
> some reason doesn't work with the 258 2) There may be another
> crossmember bracket that raised the TM/TC (not likely) 3)The chasis
> engine mount brackets are bolted in the wrong place/wrong sides of the
> chassis or I do not have the correct one2 (bought from reputable 4wd
> dealer and said they came from a CJ w/258). This is my first attempt
> at rebuilding and am certainly hoping that I made a novice mistake.
> Any guidance, pics of 258 chasiss engine mount brackets, would be
> extremely appreciated. Thank you!
>




--
Posted via a free Usenet account from http://www.teranews.com


L.W. \(Bill\) Hughes III 09-15-2007 01:05 PM

Re: 258 swap
 
I would bet there's a difference between the Chevy four banger and the
American Motors six's frame mounts, and maybe a difference between the Borg
Warner T4 and T5 rear mount: http://www.----------.com/cj7stablizerMount.jpg
Give http://www.advanceadapters.com/catalog/003.html a call.
God Bless America, Bill O|||||||O
mailto:--------------------

"CJ7 MrBeans" <cjrini2003@yahoo.com> wrote in message
news:1189872526.339516.50750@o80g2000hse.googlegro ups.com...
> Hello all-
> Currently I am replacing a 151 wutg a 258 w/T5/Dana 300 into a CJ7 and
> seem to running into an issue. Once the Transmission was bolted onto
> the crossmember bracket and I came up to take a look it was apparent
> that the engine was tilted back, so much so the valve cover is resting
> against the back of the engine compartment. It seems that the engine
> needs to be lowered to the same plane as the Transmission however this
> is several inches. I have several thoughts such as 1) This Trans for
> some reason doesn't work with the 258 2) There may be another
> crossmember bracket that raised the TM/TC (not likely) 3)The chasis
> engine mount brackets are bolted in the wrong place/wrong sides of the
> chassis or I do not have the correct one2 (bought from reputable 4wd
> dealer and said they came from a CJ w/258). This is my first attempt
> at rebuilding and am certainly hoping that I made a novice mistake.
> Any guidance, pics of 258 chasiss engine mount brackets, would be
> extremely appreciated. Thank you!
>




--
Posted via a free Usenet account from http://www.teranews.com


SnoMan 09-16-2007 09:22 AM

Re: Re: 258 swap
 
On Sat, 15 Sep 2007 10:05:13 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> I would bet there's a difference between the Chevy four banger and the
>American Motors six's frame mounts,



This is a good point. I have not looked into this but for a few years
in early 80's Jeep used a GM 151 and it is not same engine as later
AMC 2.5. The AMC 2.5/150 was designed with same bellhousing bolt
pattern as GM 151 but not sure about mount hieght. The 151 has a cross
flow head and AMC 150 has intake and exhaust manifold on same side (it
is based off of a cut down 258 with bore and stroke tweaded too but is
does not share 258's bellhousig bolt pattern)
-----------------
TheSnoMan.com

SnoMan 09-16-2007 09:22 AM

Re: Re: 258 swap
 
On Sat, 15 Sep 2007 10:05:13 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> I would bet there's a difference between the Chevy four banger and the
>American Motors six's frame mounts,



This is a good point. I have not looked into this but for a few years
in early 80's Jeep used a GM 151 and it is not same engine as later
AMC 2.5. The AMC 2.5/150 was designed with same bellhousing bolt
pattern as GM 151 but not sure about mount hieght. The 151 has a cross
flow head and AMC 150 has intake and exhaust manifold on same side (it
is based off of a cut down 258 with bore and stroke tweaded too but is
does not share 258's bellhousig bolt pattern)
-----------------
TheSnoMan.com

SnoMan 09-16-2007 09:22 AM

Re: Re: 258 swap
 
On Sat, 15 Sep 2007 10:05:13 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> I would bet there's a difference between the Chevy four banger and the
>American Motors six's frame mounts,



This is a good point. I have not looked into this but for a few years
in early 80's Jeep used a GM 151 and it is not same engine as later
AMC 2.5. The AMC 2.5/150 was designed with same bellhousing bolt
pattern as GM 151 but not sure about mount hieght. The 151 has a cross
flow head and AMC 150 has intake and exhaust manifold on same side (it
is based off of a cut down 258 with bore and stroke tweaded too but is
does not share 258's bellhousig bolt pattern)
-----------------
TheSnoMan.com

SnoMan 09-16-2007 09:22 AM

Re: Re: 258 swap
 
On Sat, 15 Sep 2007 10:05:13 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:

> I would bet there's a difference between the Chevy four banger and the
>American Motors six's frame mounts,



This is a good point. I have not looked into this but for a few years
in early 80's Jeep used a GM 151 and it is not same engine as later
AMC 2.5. The AMC 2.5/150 was designed with same bellhousing bolt
pattern as GM 151 but not sure about mount hieght. The 151 has a cross
flow head and AMC 150 has intake and exhaust manifold on same side (it
is based off of a cut down 258 with bore and stroke tweaded too but is
does not share 258's bellhousig bolt pattern)
-----------------
TheSnoMan.com

CJ7 MrBeans 09-16-2007 10:41 PM

Re: 258 swap
 
On Sep 15, 1:01 pm, Mike Romain <roma...@sympatico.ca> wrote:
> CJ7 MrBeans wrote:
> > Hello all-
> > Currently I am replacing a 151 wutg a 258 w/T5/Dana 300 into a CJ7 and
> > seem to running into an issue. Once the Transmission was bolted onto
> > the crossmember bracket and I came up to take a look it was apparent
> > that the engine was tilted back, so much so the valve cover is resting
> > against the back of the engine compartment. It seems that the engine
> > needs to be lowered to the same plane as the Transmission however this
> > is several inches. I have several thoughts such as 1) This Trans for
> > some reason doesn't work with the 258 2) There may be another
> > crossmember bracket that raised the TM/TC (not likely) 3)The chasis
> > engine mount brackets are bolted in the wrong place/wrong sides of the
> > chassis or I do not have the correct one2 (bought from reputable 4wd
> > dealer and said they came from a CJ w/258). This is my first attempt
> > at rebuilding and am certainly hoping that I made a novice mistake.
> > Any guidance, pics of 258 chasiss engine mount brackets, would be
> > extremely appreciated. Thank you!

>
> Stock you only have about 1/2" clearance from the top back of the valve
> cover to the firewall. The engine does tilt back.
>
> I have the same setup in my 86.
>
> Could your body tub have shifted and not be bolted on right? This
> happens to mine now and then. I have to loosen off all the mount bolts
> and shift the tub back square.
>
> When square, the back of the tub should just overhang the rear cross
> member slightly I believe. That is where I have mine set which makes my
> clutch linkage set up right also.
>
> On mine, the firewall bottom is flush with the front frame mount's front.
>
> Does the drain hole on the D300 line up with the hole in the skid plate?
>
> Here is a photo of my tranny mount:
> http://www.imagestation.com/3118614/4186922377
>
> It goes in the last set of holes in the skid plate.
>
> I could take a photo of the mounts and put it up if you need.
>
> The mounts are drawn in the Haynes manual on page 2C-7.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -



Hello Mike-
Thanks for your reply. I included an ablum with pictures of the engine
chassis mounts, transmission mount, and a pic of how the engine is
tilted against the firewall. The Dana 300 drainhole does line up in
the skid plate and the Trans mount is in the last set of holes in the
crossmember. I'll need to check the sqareness of the body tub.

In the pics the larger of the two chassis mounts is used on the
passenger side and the smaller mount with the slit is being used on
the driver's side.

http://www.imagestation.com/album/pi...?id=2087492536

If you don't mind taking a picture of your engine chassis mounts and
where they are bolted into the chassis that would be helpful.

Thanks again!



CJ7 MrBeans 09-16-2007 10:41 PM

Re: 258 swap
 
On Sep 15, 1:01 pm, Mike Romain <roma...@sympatico.ca> wrote:
> CJ7 MrBeans wrote:
> > Hello all-
> > Currently I am replacing a 151 wutg a 258 w/T5/Dana 300 into a CJ7 and
> > seem to running into an issue. Once the Transmission was bolted onto
> > the crossmember bracket and I came up to take a look it was apparent
> > that the engine was tilted back, so much so the valve cover is resting
> > against the back of the engine compartment. It seems that the engine
> > needs to be lowered to the same plane as the Transmission however this
> > is several inches. I have several thoughts such as 1) This Trans for
> > some reason doesn't work with the 258 2) There may be another
> > crossmember bracket that raised the TM/TC (not likely) 3)The chasis
> > engine mount brackets are bolted in the wrong place/wrong sides of the
> > chassis or I do not have the correct one2 (bought from reputable 4wd
> > dealer and said they came from a CJ w/258). This is my first attempt
> > at rebuilding and am certainly hoping that I made a novice mistake.
> > Any guidance, pics of 258 chasiss engine mount brackets, would be
> > extremely appreciated. Thank you!

>
> Stock you only have about 1/2" clearance from the top back of the valve
> cover to the firewall. The engine does tilt back.
>
> I have the same setup in my 86.
>
> Could your body tub have shifted and not be bolted on right? This
> happens to mine now and then. I have to loosen off all the mount bolts
> and shift the tub back square.
>
> When square, the back of the tub should just overhang the rear cross
> member slightly I believe. That is where I have mine set which makes my
> clutch linkage set up right also.
>
> On mine, the firewall bottom is flush with the front frame mount's front.
>
> Does the drain hole on the D300 line up with the hole in the skid plate?
>
> Here is a photo of my tranny mount:
> http://www.imagestation.com/3118614/4186922377
>
> It goes in the last set of holes in the skid plate.
>
> I could take a photo of the mounts and put it up if you need.
>
> The mounts are drawn in the Haynes manual on page 2C-7.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -



Hello Mike-
Thanks for your reply. I included an ablum with pictures of the engine
chassis mounts, transmission mount, and a pic of how the engine is
tilted against the firewall. The Dana 300 drainhole does line up in
the skid plate and the Trans mount is in the last set of holes in the
crossmember. I'll need to check the sqareness of the body tub.

In the pics the larger of the two chassis mounts is used on the
passenger side and the smaller mount with the slit is being used on
the driver's side.

http://www.imagestation.com/album/pi...?id=2087492536

If you don't mind taking a picture of your engine chassis mounts and
where they are bolted into the chassis that would be helpful.

Thanks again!



CJ7 MrBeans 09-16-2007 10:41 PM

Re: 258 swap
 
On Sep 15, 1:01 pm, Mike Romain <roma...@sympatico.ca> wrote:
> CJ7 MrBeans wrote:
> > Hello all-
> > Currently I am replacing a 151 wutg a 258 w/T5/Dana 300 into a CJ7 and
> > seem to running into an issue. Once the Transmission was bolted onto
> > the crossmember bracket and I came up to take a look it was apparent
> > that the engine was tilted back, so much so the valve cover is resting
> > against the back of the engine compartment. It seems that the engine
> > needs to be lowered to the same plane as the Transmission however this
> > is several inches. I have several thoughts such as 1) This Trans for
> > some reason doesn't work with the 258 2) There may be another
> > crossmember bracket that raised the TM/TC (not likely) 3)The chasis
> > engine mount brackets are bolted in the wrong place/wrong sides of the
> > chassis or I do not have the correct one2 (bought from reputable 4wd
> > dealer and said they came from a CJ w/258). This is my first attempt
> > at rebuilding and am certainly hoping that I made a novice mistake.
> > Any guidance, pics of 258 chasiss engine mount brackets, would be
> > extremely appreciated. Thank you!

>
> Stock you only have about 1/2" clearance from the top back of the valve
> cover to the firewall. The engine does tilt back.
>
> I have the same setup in my 86.
>
> Could your body tub have shifted and not be bolted on right? This
> happens to mine now and then. I have to loosen off all the mount bolts
> and shift the tub back square.
>
> When square, the back of the tub should just overhang the rear cross
> member slightly I believe. That is where I have mine set which makes my
> clutch linkage set up right also.
>
> On mine, the firewall bottom is flush with the front frame mount's front.
>
> Does the drain hole on the D300 line up with the hole in the skid plate?
>
> Here is a photo of my tranny mount:
> http://www.imagestation.com/3118614/4186922377
>
> It goes in the last set of holes in the skid plate.
>
> I could take a photo of the mounts and put it up if you need.
>
> The mounts are drawn in the Haynes manual on page 2C-7.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590
> (More Off Road album links at bottom of the view page)- Hide quoted text -
>
> - Show quoted text -



Hello Mike-
Thanks for your reply. I included an ablum with pictures of the engine
chassis mounts, transmission mount, and a pic of how the engine is
tilted against the firewall. The Dana 300 drainhole does line up in
the skid plate and the Trans mount is in the last set of holes in the
crossmember. I'll need to check the sqareness of the body tub.

In the pics the larger of the two chassis mounts is used on the
passenger side and the smaller mount with the slit is being used on
the driver's side.

http://www.imagestation.com/album/pi...?id=2087492536

If you don't mind taking a picture of your engine chassis mounts and
where they are bolted into the chassis that would be helpful.

Thanks again!




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