79 GMC Sierra LWB 6.0L swap

[glock35ipsc]

You will only need to add 4 fuses at most, so you can just add a simple 4-gang fuse block. They are cheap and small, they only take up about 1.5" x 4" or so.

And yeah, you got a heck of a deal for $25!!

[79gmc5.3]

Thanks Bob.... I knew if I asked, you guys would have the answer. Not much is going on, getting the last few parts, temp sending unit for the p/s for my gaugeand few misc parts. Still not sure about the original oil pressure sending unit, was told that if you do not use it it would give a low pressure code in the ECM and shut down the engine. Do you know anything about that? Think I am going to tap the oil cooler line fitting and use that.

[Thealien]

Read
Posts 86 through 89 The oil pressure sending unit is discussed there

[79gmc5.3]

Hey guys I called Performance Online about my fuel tank today. I was inquiring about an intank fuel pump they said I would have to use an inline pump because the was not a sending unit/fuel pump for this tank. any suggestions on how I could use an intank or which inline to use? If you look at the first pic where the sending is it looks like a fuel line coming out of it but it's not, mine just has the red wire that hooks to the gauge. The fitting to the left is a return and the other (feed line) is below the return line at the very bottom of the tank. Thanks for your input!

[Thealien]

Found in my LS thread under the fuel options post


Gas tank pump adapter kit


FUEL TANK PUMP MOD


Another tank mod

[79gmc5.3]

Originally Posted by Thealien

Found in my LS thread under the fuel options post


Gas tank pump adapter kit


FUEL TANK PUMP MOD


Another tank mod

Thanks Alien! I have a Holley TBI on the 305 I have in it now. It has an external inline fuel pump. I think I am going to just replace it with a high pressure inline pump for the fuel injection. I have steel lines running to the engine bay so all I need is to use FI rubber hose or steel braided to the fuel rails. Any thoughts on which inline pump to use?

[79gmc5.3]

Little progress. Got the D/S Battery tray so I can mount the stock air filter box like soule64 did. I keep telling my wife that I am finished buying parts and then......... I read a post of another swap and the next thing you know......... the UPS guy shows up at my front door!

[79gmc5.3]

Hey guys I have been looking at inline fuel pumps. What psi rating do I need? Seems like I heard that these LS motors run at 58 psi it that correct?

[camdNsprayd]

Yes u need atleast 58 to the rails.

[79gmc5.3]

Originally Posted by camdNsprayd

Yes u need atleast 58 to the rails.

Any suggestion on an inline pump?

[1sikchicksc10]

Ah another 79 GMC.. LOVE IT!!!!

[camdNsprayd]

Nope sorry..im runnin the ep381 intank pump....i dont wanna steer u in the wrong direction.

[79gmc5.3]

Originally Posted by 1sikchicksc10

Ah another 79 GMC.. LOVE IT!!!!

Yea and I love that Caddy of yours........ Very nice looking! Im following you 79 build keep posting the pics looks great.

[1sikchicksc10]

Originally Posted by 79gmc5.3

Yea and I love that Caddy of yours........ Very nice looking! Im following you 79 build keep posting the pics looks great.

Haha, why thank you
I'm subscribed to ur thread as well...

[fpjr0]

Originally Posted by 79gmc5.3

Any suggestion on an inline pump?

I used a walbro I think the model is the 394 works good,, I heard people complaint about it being noise but,,, I hooked the pump directly to the power for a little while so I could check for any possible leaks and with the truck's engine off and is not loud in my opinion

[79gmc5.3]

Originally Posted by fpjr0

I used a walbro I think the model is the 394 works good,, I heard people complaint about it being noise but,,, I hooked the pump directly to the power for a little while so I could check for any possible leaks and with the truck's engine off and is not loud in my opinion

Yea that looks like it will work. How long you been running yours? Anybody that says it's to loud, then their exhaust is to quite!!!

[fpjr0]

only been running a few days and most of it just idling so cant give you a long time feedback on it just yet

[79gmc5.3]

Alien here are pics will be shipped tomorrow. Will PM UPS tracking #

[Thealien]

Looks good thanks. At your convinience.

[fpjr0]

79gmc5.3 I can now give you a 1 week around 200 miles feed back on the fuel pump... not noisy at all,, I just put the "sleeve" they sell for it and that helps it from rubbing around and also quiets it down hopes this help..

[79gmc5.3]

Originally Posted by fpjr0

79gmc5.3 I can now give you a 1 week around 200 miles feed back on the fuel pump... not noisy at all,, I just put the "sleeve" they sell for it and that helps it from rubbing around and also quiets it down hopes this help..

Thanks, I have decided to use that pump. Got it on order. Pulled the old engine today. Here are a few pics. Will be doing a few odds and ends like installing D/S battery tray, Modifying motor support like glock and rerouting a few wires. Hopefully will be test fitting in a few days.

[menace121978]

wow! nice progress buddy! keep chipping away!!

[bigdnew]

subscribed, just bought a 2005 6.0 for my 1986 today. Will be following your thread and others as i begin the swap. Thank you.

[79gmc5.3]

Congrats on the 6.0L, my progress is slow but steady, started laying out where the ECM and TAC will go. Installed the D/S battery tray. Need to modify the P/S battery tray to accept the filter box. Removed the P/S motor support to have a plate welded on to accept the motor mounts new location. Hopefully will be ready for a test fit in the few days.

[Cherub]

Originally Posted by 79gmc5.3

Ok guys, trying to decide on the electronic or a cable style throttle body. My engine came with an electronic style but I don't have the pedal or TCM. Or does the PCM control the throttle? I have a cable style also so I have both. Just need the pedal and TCM. What would I have to do to use the cable style? Thanks in advance.

Im just catching up on your thread. If you havent found a pedal yet i have one sitting in my garage from a 2003 lq4. I went with drive by cable instead.

well i kept reading and saw you picked one up already.