my 79 Sierra diesel *new pics added

[Captkaos]

I see the picture of your truck on here, is there more?

[Fordeatinz71]

no, that was it...but when i look at my own pics, i can't see 'em...it's doing it on FSC too...i dunno...as long as other people see 'em

[Captkaos]

Are you behind a firewall or proxy server?  Is this at home or at work?  Some companies block certain sites due to content.

[Fordeatinz71]

i'm at home, and oddly enough this issue just started...never had it before...gonna have to do some work to the computer tomorrow as it's my one day a week off...

[79diesel]

heres some pics right after the engine was in and running. These were taken in june.





heres the interior with bucket seats from a 94 mustang and you can see the size of the trans hump required. the carpet around the tunnel is unfinished still i am waiting to get some dynomat type insulation before i finish



guage setup.. i need to replace the oil press and water temp guages with autometers as well as get a programmable speedo so i can hook into the electric sender on the NV

[jonkmbll89]

What did it take to put the motor and trans in? I noticed that you had to redo the trans hump to make it fit. Did the motor mounts line up or did you have to modify them. That setup you got is cool and I thing I might do the same in the future but it might be in SWB.

[79diesel]

What did it take to put the motor and trans in? I noticed that you had to redo the trans hump to make it fit. Did the motor mounts line up or did you have to modify them. That setup you got is cool and I thing I might do the same in the future but it might be in SWB.

custom motor mounts were made it took about a day to get the measurements and angles perfect. there is less then half of an inch clearance at the top between the hood and at the bottom between the steering and the engine. i used 1st gen dodge rubber mounts between the frame and the engine mounts. There is a company that makes the sells motor mounts for the conversion.
 i had to remove the fan to clear the rad at the front. The firewall needed no modifications. A transmission crossmember was made as well as the driveshaft was shortened and i used yoke out of a dodge driveshaft to hook up the NV. other then that it was pretty straight forward.

[Fordeatinz71]

lookin sweet!  now ya just need to get a custom-machined air intake tunnel made that has something cool on it like GMC Sierra with Cummins Turbo Diesel under it...looking all factory like that Dodge Ram does...

[Captkaos]

Sweet pics 79diesel!

[JRConnieK10]

Cool pics  I bet that is a big shock when you pop the hood sweet install.

[Hank Hill]

I love your truck! Wish you would give more details of the Cummins conversion. Example what about your front suspension? How did you go about beefing it up for the weight of the Cummins? Fuel tanks, fuel lines, etc. what all was involved?
Do you have an estamate on total man hours for the conversion?

[Blazin]

I missed this in the last two weeks or so. Welcome to the site from New Hampshire. I thought years ago that would be a nice swap into my wheeling rig, 81 Blazer.

[79diesel]

I love your truck! Wish you would give more details of the Cummins conversion. Example what about your front suspension? How did you go about beefing it up for the weight of the Cummins? Fuel tanks, fuel lines, etc. what all was involved?
Do you have an estamate on total man hours for the conversion?

thanks everyone
Front suspension was left untouched..i was told the springs for the diesel were heavier then the gas ones? im not sure. it rides very soft and has alot of body roll...and when you hit a big bump it bobs for a while lol. Its completely driveable but noticeable. I have the stock sway bar, im considering going to a larger one to help. I plan on one ton springs and shocks but im not sure if the springs will raise the front too much I may get 2" 1 ton lowering springs to correct it or get a set made. Nothing was beefed up but ideally if you could start with a 3/4 ton the front suspension and brakes would handle it alot better but hat being said it works fine as it is.

the cummins just uses a mechanical fuel pump on the block the only problem was that it was on the drivers side so i extended the lines around the front and back down the drivers side. the cummins uses a smaller intake line so i had to downsize but no big deal. other then that the stock fuel tanks arent an issue.

other then that lots of little stuff like i had to make an adaptor for the power steering line to go from the dodge fancy o-ring flare to the standard gm. The alternator required an external regulator, but you can get an internally regulated gm style one if you want. I used the dodge throttle cable but it had to be modified at the pedal end. i used the first gen dodge turbo downpipe it fit without any problem. also had to install a clutch pedal and master cylinder and reservoir. Thats about all i can think of

total man hours maybe 100? i had some good help along the way. The main thing is to take your time and try to do everything right the first time.

[jonkmbll89]

Can you make a video so we can hear what it sounds like? Thanks.

[79diesel]

Can you make a video so we can hear what it sounds like? Thanks.

lol maybe in the summer time when its out of storage.. it sounds pretty mean...especially when i hit 30 pounds of boost