Re: LS engine swap info
 

Is there a way to id a 5.3 motor? I was looking at one yesterday for a friend and back of the block shows both 4.8 and 5.3l. Price was good $500 with harness and pcm.

Re: LS engine swap info
 

good question.. mine was still in the truck. that how i know.. as for yours.the harness is a little different. I would think if you have the # off the ecm call the dealer and they should be able to tell you.. when in doubt ask.. right

Re: LS engine swap info
 

Re: LS engine swap info
 

I didn't see it in here, but I may have missed it.

OBDII under dash connector (DLC) parts. If you didn't get the one from the donor, here is a source:

www.mouser.com

Connector (1), #829-12160437, $1.07
Terminals (4), #829-12129373, $0.21 each
Terminal locks (4), #829-12160437, $0.27 each

Re: LS engine swap info
 

If you saw my last post I will be doing just that with all the connectors, most of which can be bought cheapest at Mouser. If you click on the data sheet it will also give related parts such as the pin numbers.

Re: LS engine swap info
 

I've got a couple of powersteering questions. What thread adapters can be used on the ps box to allow use of the LS hoses? Second, my p/s pump has 3 hoses coming out of it, I know what 2 of them are...any guess on the third? Keep the info coming! I'm about 2 weeks away from jumping knee deep into finishing mine, :crazy:.

r/

EDIT: Here's a link to an oil pan discussion if you want to add it:

http://67-72chevytrucks.com/vboard/s...d.php?t=272174

Re: LS engine swap info
 

The third hose is another return line used in hydroboost pumps. I have read those pumps are a little better? I have heard people use either for hydroboost and non hydroboost without issues. You will just have to cap off the unused return line.

What I found as an easier solution on the whole power steering issue is remove the fitting off the back of your original power steering pump and put it in the power steering pump you have now (the one with the extra return line). By replacing that fitting you can now use your existing/stock power steering hoses with the new LS pump. Might have to tweak/bend just a little.

I'll check out the link although in a couple of the links early in my thread I have links to FAQ threads in a couple of places that discuss the different oil pans and their dimensions.

Re: LS engine swap info
 

Good info on the 3rd hose. I don't have the old lines and I have all new lines on the new pump, that's why I was trying to go the other way. I'll price some new "old" lines tomorrow and if not to expensive, I'll just do that.

R/

Re: LS engine swap info
 

Sorry I don't have an answer on how to adapt (which I am sure there is some way). I pulled the engine out of my Jimmy so it was the easiest route to just change that fitting. Do you have access to an old pump? If not you will need the fitting out of a pump and the hoses. At that point it might be just as easy to have a local NAPA or? make up a new line for you.

Re: LS engine swap info
 

thealien I tried NAPA but if you tell them is for power steering they will not make them, I guess is a liablitly thing... what I did is I got for the high pressure side at the rear of the ls pump used a 16mm o-ring adapter to a #6 AN , they I used 2 ft of braided line, then a #6 an adapter from the braided line to the 18mm o-ring adapter at the gear box, and for the return line, I used the original high pressure hose that is a 16mm o-ring that fits on the return from the gear box, I cut the line, flare it and used rubber hose witha clamp,, and capped the 3rd line.. I think it cost me around 50 bucks including the fittings.. since you need 1-18mm to #6 an adapter, 1-16mm to #6 an adapter and 2 feet of the braided hose... hope this helps a little total cost was around 50 or less,,, cant remember

Re: LS engine swap info
 

Yeah I didn't want to use any AN hose (trying to keep it factory looking) so it was easier to just swap the fitting from my old pump to my new pump and use my stock 72 lines. Cost was $0.00

Re: LS engine swap info
 

Ditto, same here.

Re: LS engine swap info
 

is it true that if i am running the truck intake, i do not need the corvette regulator filter unit? I can just run the external fuel pump and a filter to the rail that on the truck intake has a integrated regulator?

Re: LS engine swap info
 

If the fuel rail is the older version, 2003 and older I think, that has the integrated regulator with two ports on the rail (inlet and return), then correct you don't need the Vette filter/regulator.

If it only has one port, then you will need to use the Vette filter/regulator.

Re: LS engine swap info
 

should have stated it is a 5.3 out of a 99 gmc 1/2 ton. I have been reading and reading and reading,,,my mind is melting...there is tons of info but i cant just pull it all together ahha.

thanks!

Re: LS engine swap info
 

LOL, I understand completely! You are good to go with just a regular filter.

Re: LS engine swap info
 

i dont want to hijack the thread, i probally should just continue on my project thread but i dont think i will get the hits like on this thread..... so do i just run new lines of my current fuel tank on my 84 to the pump to the filter to the rail and then run the return back to the tank?

Re: LS engine swap info
 

You will need fuel injection rated fuel line, filter, clamps, and of course the fuel pump. Try to use either as much solid line as possible, or stainless braided line. Try to keep FI rated rubber hose to a minimum, as in just connections.

Supply line from the tank, to the filter, then the pump, then to the engine. All 3/8" (-6AN).

Return straight from the engine to the tank. 5/16" (-4AN).

Do you have two tanks? And if so, do you plan on keeping both operational?

Re: LS engine swap info
 

glock, i transferred to my build thread, i didnt want to muddy up this thread.

thanks for the help glock!

http://67-72chevytrucks.com/vboard/s...d.php?t=367330

Re: LS engine swap info
 

Let me know if you need any LSx parts!

Re: LS engine swap info
 

how did you do the power steering?

Re: LS engine swap info
 

my set up was from a van that had hydraboost steering so I had an LT1 PS resevior and that is what I got for the res. I mounted it over next to the windshield wiper fluid res.

Can see it here:
http://www.herronperformance.com/ass...side_cover.jpg

Re: LS engine swap info
 

Is the VIN stamped on the block anywhere? I can't seem to find it. I'm tTrying to figure out exactly what year my motor is. It's supposed to be an 06, but I just want to make sure prior to ordering my harness.

Re: LS engine swap info
 

the block year doesnt matter until you get into the 2007 ( GEN IV) year and they changed some sensor locations, If your ordering a harness just tell them if it is DBC or DBW. Correct me if I am wrong but this is what I was told.

Re: LS engine swap info
 

that is the way I understood it. If the motor and PCM came together and you are 100% sure, that information can be pulled from the PCM.

Re: LS engine swap info
 

Thanks for the info. I just ordered my Fuel Injection wiring harness. This is the information I sent to John at Speartech. Let me know if I you think I have overlooked something:

Wiring harness for a 2006 5.3, 4L60E with a MagnaCharger.

Motor #: I couldn't find the VIN number (picture included)

Tranny # 616CHYD42093461 (picture included)

Injector # : 17113739, 44 lbs (picture included)

Computer Service # : 12589463

Maf # : 25168491 (this number is on it also, 7664630A)

O2 Sensor 1 (SQUARE): 12589321 (picture included)
O2 Sensor 2 (TRAPAZOID): 1259986 (picture included)

Tach module # :12588923 (picture included)

Pedal #: unknown (picture included)

Harness length: Standard length

Cruise control, Air conditioning, delete rear O2's, pedal harness, no emmissions, CEL

Re: LS engine swap info
 

In doing some research I was unable to come up with a cure for my return line issue. I have a truck intake with regulator and return. I wanted to switch to the corvette filter with regulator and ditch the return line from the engine but stick with the truck intake because it's tall and I think it fits the engine bay better than the shorter car intake (not to mention the car rails all seem to have the feed pipe pointing to the left instead of back towards the firewall). What I did was replace the left fuel rail with a non-return rail part number 12602113. Then you can toss the return pipe that attaches to the rail and you're left with only the feed pipe. You can also get retainer kit part number 89017378 to replace the one that was originally for both tubes, I plan to just trim the one that was there.
http://img.photobucket.com/albums/v4...1270603966.jpg
http://img.photobucket.com/albums/v4...1270603970.jpg
http://img.photobucket.com/albums/v4...1270603967.jpg

Re: LS engine swap info
 

Or you can get a different set of fuel rails that does not have said FPR on it from the trucks, I do not have a good pic of it but it accomplished the same thing as mentioned above. Heck, I think I got a spare fuel rail here that does not have a FRP on it.

Re: LS engine swap info
 

Over on ls1truck, ls1tech, et al, the guys that are building up GenIII's with LS6 and other aftermarket intakes practically give the 04 > truck intakes and rails away.

Re: LS engine swap info
 

If you want to go big, I can ship you a 102mm FAST intake for the truck for $840 and $30 for the intake gaskets if you want them too.

Re: LS engine swap info
 

lots of great info here

Re: LS engine swap info
 

Is there some way to id year of motor online using the computer/ecm number? I have same prob as guy before, not sure of year of motor and i don't have a transmission yet...(po i bought from said he "thinks" it was from a 2006).

Re: LS engine swap info
 

Theres a 3 digit code (like DCP) that doesn't match the RPO number (LS1, L92, etc)...the dealers Parts dept) don't seem to know what it means... but someone at GM has to.

Re: LS engine swap info
 

Does anyone know of a good tuner in the DFW metro?

Re: LS engine swap info
 

Try Brian. He even has a dyno.

Exatorq

Re: LS engine swap info
 

Wow! $500?!

I got mine from Wait4me, I think I will try Nelson performance in SA, a custom tune is $300.00 and they mail order too.

Re: LS engine swap info
 

Thats list for a Wester's tune probably...Brian discounts the price, especially if he doesn't have to reference Westers data for your tune. Brian can also do a dyno tune....rather then a "bench" tune. I plan on taking my truck over to him to help dial in my combo when its complete. He's worked on my TBSS and it picked up like .4x to .5x in the 1/4.

Nelson is OK but Wait4me wouldn't be my 1st choice. You could also buy HPTuners or LS1edit and do it yourself?

Mine will be easier to tune I think. Just select the right curve for the MSD box and the rest is jets, air bleeds, and set screws....screwdriver work. :lol:

Re: LS engine swap info
 

Wow, lots of info here.... Thanx guys...

Does anybody have and photos of the lokar shifter cable installed.. I am having trouble with it right now so if you got pics of the trans and the steerring column that would help.... Any tricks would be helpful too..

Re: LS engine swap info
 

Which one? I have used both styles and ended up with the rod style over the cable style.

Re: LS engine swap info
 

I got it figure out.... Finally found a pic. of it installed on the column. Where it is attached to the trans it is at quite an angle though..