Search:

Don't forget to ground the tac module itself, or it won't work.

Very nice. I've read probably the same build threads you have. From what I can tell, its 8.1 is just a torque monster. Modern fuel injection will probably keep fuel milage the same as the tbi setup,...

Very well done. Torque curve is something else, eh? Way better than any sbc ever hoped to be.

Everything computer related can be tuned out with ease. Any capible tune can do it. You can turn just about anything on or off. ABS is controlled by a seperate computer, non pcm related I believe....

Not sure which case you are chasing, but a np241 should do the trick. Somewhere between 88-92 is what you're looking for, obviously passenger side drop. Somewhat hard to find. Not only will it allow...

Used a similar pump on my 5.3 swap, but it was for an ls1 firebird/camaro from 00-02. Not sure if its the same pump or not though, but it came from the same supplier.

There should still be a large, red wire on you're current alternator (87), that runs to a fuseblock, or maybe even splices to the battery. The 5.3 should also have a place for the large, red charging...

Not sure this is relivant, but I tried using the stock Y-pipe in an OOBS (73-87) and it wouldn't work due to driveshaft clearance. It may on a OBS like yours, if the driveshaft is on the drivers...

I did the TBI swap about this time last year. It wasn't bad, but it left a lot to be desired. Compared to the LS, we'll, there is none. The LS is a whole other engine in itself. There is a lot of...

Its done

http://i136.photobucket.com/albums/q173/NaeTrav/LS%20Conversion%20to%2086%20GMC/39.jpg

Don't feel like repeating what I already wrote once. See thread on LS1tech @...

I just finished my swap. Not sure which rad you have, but mine was new as well. It had the stock upper and lower rad ports, 1 for the overflow tank, and the other for the hose that came off the...

What engine did you have before? What year truck? Trans should not have to be moved if you have the correct mounts, mounted correctly.

Haven't done it, but I don't think its to difficult. Newer engines don't have egr (efficent enough not to require them), so that would be a starting point. You need to figure a way to hook up the...

Haven't gotten through mine yet, but I've solved those problems. My power steering lines bolt up to the exisiting steering box. The newer trucks use the same fitting as the metric box we have in our...

Walbro 255 intank pump. and high pressure switching valve

http://www.jcwhitney.com/motor-driven-fuel-tank-selector-valve/p2005712.jcwx

corvette regulator and filter combo

Guess it works. I wouldn't have guessed it would suck well enough through the valve all the way to the tanks. I'm running two tanks, and putting two pumps per tank. The stock selector valve is not...

It seems its always the stupid stuff that takes more time and effort than the more complicated crap.

Took an LM7 from a 5.3 in a 2004 silverado. Had a y-pipe and full exhaust hooked up for...

In to process of mating a 5.3 to a SM465 trans. I have ordered the sachs flywheel NFW1050, which is for a later model 4.8 or 6.0 engine that also had a manual transmission. This is to make up for the...

Now that I have successfully brought back a 5.3 LS from the dead, its time to prepare for installation. For those of you who've been following me, I've been prepping my first LS install into an OBS...

Thanks. Everything here is 4 hours away as you know, so range and reliability is key. I have the fuel line from the silverado that I robbed parts from. Its a little long, but it has the right...

Thanks. One of my tanks is already a tbi tank with matching sending unit and pump. I guess its just a matter of switching the pumps, correct? I would like to keep two tanks, since it gives me added...

Have now got the destined 5.3 up and running. Click for video.

http://i136.photobucket.com/albums/q173/NaeTrav/th_FirstRun.jpg

Runs well. Selling of remaining parts from wreck to help pay for...

How long has he been driving the truck since the swap? I've been trying to locate an aftermarket switching valve, and the ones I have found are only rated to 60-65psi or so. If the FPR is located...

What did you do for the remainder of the exhaust? Did you use the factory Y-pipe and build from it, or just custom from the manifolds back?

Tank Selector Unit

I know that there is a high and low pressure unit availible for these older trucks. For upgrading to intank pumps, I understand the high pressure TSU must be used.

I am...