Re: LS engine swap info
 

I have to agree. He seem like a good honest guy. Even did some work for me without charge that got me out of a bind. I shipped my PCM to him and he did a quick turn around.

Re: LS engine swap info
 

what walbro pump are you guys using for the external?

also can i use my factory lines on my 84 and adapt to them to the fuel rail and to the pump to tank.

Re: LS engine swap info
 

i am shipping my harness and computer to waitforme performance to get reworked, seems like i cannot get ahold of the other guys and jesse seems to be a good guy.

Re: LS engine swap info
 

I am using an ebay "E2000" pump <$50.
Just need the right fittings/clamp for the factory stuff to work

Re: LS engine swap info
 

I used a Pierburg Pump from Turn Key Engine supply.

Low_84, I would just save the $ and ship it to Nelson Performance, they will do you right. Not that there is anything wrong with Jesse, he is a really nice guy, it's just that Nelson Perf has a very good rep here and on LS1Tech/Ls1truck.

I went with Jesse and them, the work they did was fine for a stock tune, nothing more( all the stuff was eliminated and I wanted it on, like front O2's the CEL, and other sensors) the harness didnt look very clean at all. no instructions were with it at all. After 2-3 calls, I figured out what went where. Their communication is on the poor side though, very frustrating.

I DID get what I paid for.Knowing now what I know, I would get an after market harness and a perf tune. Try Fuel Injection Connection (FIC) for your harness, they quoted me $508 for the engine harness with 4l60e, all relays and such for fuel pump, ac and stuff.

If your putting your LSx in your 84, just get a tank from an 87 and put the Walbro 255 in it.

Hope this all helps.

Re: LS engine swap info
 

I use Current Performance out of Florida

Re: LS engine swap info
 

i have a question on the 4l60e,,,,apparently you "have" to have a speedo for the tranny to shift?? well here is the problem, my 84 has a broken analog speedo and i dont really want to deal with the speedo right now. i thought the computer shifted the transmission.

Re: LS engine swap info
 

You would need an electronic speedo, the truck will run and all without one, you will just be a target of Johnny Law without.

You can switch the tail housing out to a 700 ( or aftermarket) but I think that is expensive. You also can purchase an electronic speedo from many different guage companies, takes a bit to get them configured but it isnt all that bad.

The trans shifts the trans, the computer just monitors it and adjusts the rpm and or timing if needed, I really dont think it cares what the trans is doing.

Re: LS engine swap info
 

yeah, or i could use gps,,,hillbilly style,,i just want to get it on the road.

so where should i send it...to current or nelson..

current 450 for harness rework 175 for factory tune
nelson 450 for harness rework 150 for factory tune

one thing i like about current is there fuse/relay block they include

Re: LS engine swap info
 

Whats this lokar shifter cable i hear about? you cant just put a lq4/4l80e and be good? how much is it?
also, has anyone tried blackbear for tuning? what do you do, just send them your pcm and harness? will they do a performance tune for the same price instead of a stock tune?

Re: LS engine swap info
 

also, if the motor i get just has harness/pcm and altenator, am i screwed with no power steering pump? what else am i going to need?

Re: LS engine swap info
 

The computer has the trans tables in it, the PCM needs the VSS pulse to know what is going on but you do not need a speedo for this funtion to work. But if the trans and PCM do not get the info they need it will stay in limp home mode.

Re: LS engine swap info
 

I have used both Lokar shifter setups. One is a cable style and I did not like it that much, was a PITA to set up. I am now using the rod style but it is limited, I can only go to 3rd gear with that shifter b/c of the angles just wont allow it.

As for what a company will do for you, why not contact them to find out!? that is the best source of info.

Re: LS engine swap info
 

I have a question on the 5.3 truck motor.

is the alternator, ps pump, water pump, starter and brackets the same for the 1999 and on motors....say will accessories off a 04 work on a 99?


thanks,

jason

Re: LS engine swap info
 

Thanks for the info. just got a 5.3 vortec with 50k miles for 500$. im putting it in my daily driver, may the carb and my knowledge for it go straight to hell. Vegas heat sucks for the performance.

Re: LS engine swap info
 

I'm sure this has been covered in another thread, but here's a reminder about oil pressure and water temp fittings. The metric-to-npt fittings are available at speedwaymotors.com. They might be found cheaper somewhere, but they shipped quick and fit perfect:

Water:

http://www.speedwaymotors.com/LS1-Wa...pter,8195.html

Oil:

http://www.speedwaymotors.com/LS-Ser...DisplayId=8195

Re: LS engine swap info
 

lots of great info thanks!

Re: LS engine swap info
 

good info and I just recently bought (and recieved) those from them....along with my new oil pressure and water temp gauges. :lol:

still need to do something about the steam vent tho. whats the best way to do that on our trucks?

Re: LS engine swap info
 

Terrific Job with this thread!!!!

Re: LS engine swap info
 

http://www.frozenboost.com/index.php...04a9f3530288b7

a link for those trying to get around not running cats. enjoy :metal:
hope it helps someone!

Re: LS engine swap info
 

if thats what you want........ why pay when you can gut them?

Re: LS engine swap info
 

because LS cats are worth nearly double what them cost.

Re: LS engine swap info
 

is that for visual inspection!?!? why would these old trucks go thru a visual inpsection? sorry, in SC we do not have inspections right now...

Re: LS engine swap info
 

yes, its hit and miss around here (ETX), some places dont, some do depending on where you go but it is getting worse and worse. 24+ year old vehicles do not have to undergo the sniffer, but a "visual exhaust/emission equipment" inspection for anything newer than 1968.

Re: LS engine swap info
 

Did some '68s come with cats???

Re: LS engine swap info
 

actually maybe it was 1975. somewhere in that time frame, i dont know when they started installing them.

Re: LS engine swap info
 

I've got a set of LS Cats if someone is interested.

Re: LS engine swap info
 

1973-1974 was when they started installing cats on vehicles right during the gas crunch era. In texas and I got this from the DMV if it was not installed as a factory item it does not need to be present on the vehicle at the time of inspection. So if it is 78 for sure or newer at least one set of cats has to be in place on the vehicle. Went through this with the inspections station on my pontiac firebird. They did check to make sure that all required vacum lines were in place on the engine. What few there were lol. Working on getting that car back through inspection for the year having some brake issues that are holding me back atm. Sean

Re: LS engine swap info
 

wasn't it the 1975 models? At least for GM?

Re: LS engine swap info
 

what about throttle cable setups.....1999 5.3 in 84 shorty??

Re: LS engine swap info
 

68 custom,
You might be right IO know it was within that times range.

Cable setups for a 5.3 you will probably need an 04 or earlier engine unless you want to piece it together I know lokar and a couple of other companies make cable setups for that and ls series engines. I have one for an unused tpi conversion atm. Let me look around I might have the ls lokar setup laying around somewhere.

Sean

Re: LS engine swap info
 

yeah my motor is a 99

Re: LS engine swap info
 

After checking out the above mentioned straight pipe that looks like a catalytic converter, I read the disclaimer at the bottom. Hilarious!:lol:

"The product description above is for entertainment purposes only. This product does not perform the exhaust cleansing function of a catalytic converter in any way. Use of this product on or off the road violates countless laws and may prevent your car from passing emissions. It is unlawful to install this product in any vehicle in the United States, ever. If you wish to return this product at any time in the future, a full refund will be issued. This product should only be purchased by lawyers with pre-1975 vehicles or purpose built off-road vehicles that did not come with catalytic converters from the factory who know for a fact that it is legal to use in their vehicle in their jurisdiction for aesthetic reasons only. If you are not one of those lawyers, this product should only be hung on your wall to express your rebellious nature, never installed in a vehicle. This product may cause cancer."

Re: LS engine swap info
 

Hey thealien, thanks for helping out here....i'm havin a problem with my lq4 motor it has the single fuel rail system u speak of (2005) from a gmc savannah went to napa, thought the oem fuel filter would have a return, but it's just 1 in 1out so now i'm so confused...it wont start unless you are spraying starter fluid in the intake -----& i dont have the mass air hooked up any help would be very appreciated thx dave





=Thealien;3686299]Fuel system (any chance a mod can move this post up?)
The LS engines require 58-60 pounds pressure at the fuel rails. Older fuel rails had a regulator on the rails and there is a feed and return on these engines. On the later fuel rails there is only the feed on the rail. You need to have something like the filter regulator shown below to return the excess fuel to the tank. Some of the tanks these engines came with did this internally in the tank.

Corvette filter/regulator

I don't know how long this will last but a decent deal on the regulator/filter and he will take offers for less I am told

GF822
Lots of people use Walbro external pumps

Walbro external pumps and fittings
Dorman quick disconnects for GM fuel line

Dorman 5/16ths

Dorman 3/8ths
Russel AN quick disconnects

Russel 3/8ths

Russel 5/16ths
Don't have a way to make the GM quick disconnect? Try one of these

Dorman flare to quick disconnect
Fuel pump tank adapter

F-body LS1 fuel pump adapter kit
here is an installation tutorial of the adapter kit

Tutorial of adapter kit
Another gas tank modification

EFI pump tank mod
Dual tank info

Compliments of Glock35ipsc[/QUOTE]

Re: LS engine swap info
 

yes yes i can use your help big time i'm reachin out to anybody i'm puttin n a 6.0 2005 lq4 in my 72 burb has the single in fuel rail no return i'm told on here somewhere i need a fuel filter with a return built in so hit napa and the oem is only 1 in 1 out,,,?:confused: it won't start unless sprayin starter fluid in the intake i dint have the throttle canle of mass air flow hooked up yet either...just tryin to start it first....do i need the others first??? the smell of gas in my garage is soooo overpowering like its tryin to run on only gas....Please help thX Dave

Re: LS engine swap info
 

the part you are looking for is GM part # 19239926

Re: LS engine swap info
 

still confused! what part number is this for? fuel filter? & y is the stock filter only no return, and 1 more do i need return....im not really an engine guy so help explain please something doesnt make sense in my pee brain

Re: LS engine swap info
 

That part number I am guessing is the filter with return line attachment to work with your engine. The return line routes fuel back to the gas tank when the fuel injection rails have reached full pressure. Helps to save the fuel pump from too high of pressures. And other things as well. Not a boned up on these items yet working on it quickly tho since I will be buying my new gas tank this fall and installing it after the bed is completely repainted with new oak wood. :D late 2004 and early 2005 they simplfied the fuel rails due one part problems with the regulators plus high pressure requirements. So what you probably grabbed a hold of was one of the early 2004 models that still had the rail regulator in place rather than the newer filter regulator assembly.

Sean

Re: LS engine swap info
 

sdwolff98 so to clarify...i need that filter with the in/out and return to the gas tank?? if so, then ok but i dont understand why my set up is just like the van it came out of single line fuel rail(inlet) single in and out filter no return

Re: LS engine swap info
 

you never know they coulda had a wrong part # at the store. it would def have a return somewhere tho.

but yes you need that.