lt1 install need help

[94ss s10]

im trying to install basicaly the intire drive train out of an 95 impalla ss into my 94 ss s10 does any one know what motor and trains mounts i can use the new motor is a lt1 350 and the trans is a 4l60e if any one else has done this swap, any advice or anything about problems i might run into would be greatly apreciated

thanks

[1/4milecrazy]

2.8 motor mounts on the frame with V-8 swap mounts on the block,trans should line up with a stock auto crossmember and mount

[94ss s10]

the v8 swap mounts on the block do you know a part# or a manufacter i could get them from in canada also will i run into any clearence issues with the oil pan and the front crossmember

[eacyde]

Where in Canada are you?

[1/4milecrazy]

http://s10v8.carshopinc.com/product_...id/59/S10_2WDM

[Project Dime]

no u wont have any clearence issues with the oil pan and the front crossmember. just use a stock oil pan and u will be good to go.

[94ss s10]

im in pickering ontario canada and i went with a kit from trans dapt that lets me use 4.3 mounts for the motor, any one know if the trans will mount up with my orignal mount

[S10LT1]

haha, pickering?

no way

im just finishing up my swap next weekend and will be out and about in that area all summer

id offer some advice but my lt got carburated

good luck dude

[ls1s10onair]

not to barge in, but 4.3 mounts are way too soft.... look on the jags that run website.... www.v8s10.com 2.8 mounts would be better

[eacyde]

Quote: Originally Posted by lt1s10onair

not to barge in, but 4.3 mounts are way too soft.... look on the jags that run website.... www.v8s10.com 2.8 mounts would be better

x2 and there are more exhaust options with the 2.8 style mounts.

your other option is to go with Trans Dapt Plates and use OE v8 mounts

[94ss s10]

ha ha oshawa ill race you some time, the trans dapt kit i picked up is #4691 and it sugests useing there mounting pads #4218 any input on that, also what does everyone do with all the emission controls like the evap can and the air injection system i want to put headers on and i wont be able to reconect the lines, also will a msd 6al box still work with the opti spark system

[S10LT1]

Quote: Originally Posted by 94ss s10

ha ha oshawa ill race you some time, the trans dapt kit i picked up is #4691 and it sugests useing there mounting pads #4218 any input on that, also what does everyone do with all the emission controls like the evap can and the air injection system i want to put headers on and i wont be able to reconect the lines, also will a msd 6al box still work with the opti spark system

nice, right on man, always down for a good ol race...lol...just wonderin something tho, o you or anyone else know where to get the optispark bolts from(the ones that bolt the stupid thing to the block) or do you know the size of the bolt and threads?

94ss if ur engine isnt in yet and you can get to one of these bolts would you be interested in having a few made for me and i will pay you for your time and parts.

pm me dude, and we can work soemthing out, making them is my last resort, but gm dosnt list or stock them apparently.

[ls1s10onair]

all the optispark bolts are, are ur timing cover bolts.... 1/4-3/8" longer..... i thought they were 1/4x20........ take out a timing cover bolt and get three longer ones

[S10LT1]

wow, thanks a lot man, just saved me a lot of running around

[94ss s10]

any one have any advice on what to do with smog equ. like the air injection system and the egr. stuf

[loudnlowdus10]

Are you required to keep it? I ditched mine.

[S10LT1]

all mines gone as well

[94ss s10]

thats the thing i dont know if i need it, will it pass emision testing with out it its going into a 94 and the new motor is a 95 so ether way i got a few more years of testing i think its 20 years every other year, or even what do they test against when i put in the 350, will they test against the 4.3's standards or the donor car's, if i can get away with it i want rid of the systems

[S10LT1]

actually, ontario just f-ed up majorly on the law they just passed, no vehicle passed 1987 can or will be exempt, ever.

your truck, sorry to say it, will need to be sniffed even when its 50 years old


it sucks in a big way yes.

my suggestion is your going to need to have it all hooked up, although u will probably still pass just because u can go under Hot Rod classification, all you have to do is prove its not available in that truck, wich is very easy cuz there was never an 8 offered.

id go in and ask someone at a drive clean place, but what ive heard itll be fine...worst comes to worse, i know someone close that can pass anything.

good luck bro

[94ss s10]

yea ill ask some where any idea what the idea behind the air injection system is as best i can tell its just a centrifugal air pump atached to two check valves blowing into the exhost manifolds, i think my air pump is ceased cuz when i put in the fuse it blows and the motor runs fine with out it

[S10LT1]

i wouldnt ask to much about the air pump, all it does is pumps air into ur exhaust so that it has a better ratio on the meter really


id just ask a drive clean guy if youd be classified under hot rod(wich im 95% sure u are) and find out how strict the legal amounts are....how i understood it, is u could pass a carbd engine with the right tune, but almost any FI'd engine will pass....dont know if thats true exactly, but im sure theres a little more to it than that...lol

good luck dude

[94ss s10]

hey what brand of headers do you use on the lt1 the guys at karbelt wernt sure

[S10LT1]

just small block swap headers....i used cheap ones, and now im finding the passanger side is a tad tight to the frame...im not doin the exhaust so i dont really care, but its gonna suck for the wallet wen they guy overcharges me cuz of it....lmao

the LTX's have D shaped exhaust ports, 1st gen small blocks have O shaped ones, normal headers for a first gen small block will work, they just wont advertise that they work for it.



PS....The opti spark bolts are just 1/4" bolts 2" long..lol

[loudnlowdus10]

I use Sanderson headers

[94ss s10]

what did the sanderson headers cost you, and when repowering the rest of the truck do you only need to put power to the stud bar with the red wires on it, or am i missing some thing

[bkaltec]

I have sandersons now got them for i think 240 or something. They were quick to install and no issues and had good clearence. BUT, i just ordered some hedman longtubes, which from many people i trust say are quite a bit better. However they require the 350 style mounts and adapters, not the 2.8 style.

And on the wiring, youll probably have some power and grounds on the driver and passenger side body plugs. Grab some wire diagrams and check on it.

[94ss s10]

anyone know if the stock s10 fuel pump will be fine to feed the lt1

[The Stunningman]

Quote: Originally Posted by 94ss s10

anyone know if the stock s10 fuel pump will be fine to feed the lt1

Yes it will work fine.

[94ss s10]

did any one reconect the a/c in on the lt1 i dont think the s10's compressor fits in the bracket the compressor clutch still has two wires on both compressors but it looks like the s10's has a 2 wire pressure sensor on its back but the lt1 has a 3 wire sensor on one of the lines any one know the conections also does any thing need to go back to the lt1 computer, i can find a wiring dia for the s10's a/c with out buying one any one help me out.

[c_ren]

I just printed off the wiring diagrams for the 94 s10 today. I am putting
a LT1 out of a 94 caprice and I also have the diagrams for it. I think that
the impalla and the caprice are the same. If you want them let me know
and I will see what I can do about getting them scanned and sent to you.

[94ss s10]

ya man id appreciate that the impala ss is acually a caprice 9c1 clone didnt find out till i got my hands on the car so ya we' are doing the same swap my email is camro44@hotmail.com you could send them there thanks

[capricefrk013]

The air injection is NOT needed. It was a recall by GM. Unplug it or pull the relay for it. It causes moisture to build up. They F-ED up with that one. When I got my caprice it was already disconnected by the previous owner. Which was the Ohio State Highway Patrol.

[c_ren]

Quote: Originally Posted by 94ss s10

ya man id appreciate that the impala ss is acually a caprice 9c1 clone didnt find out till i got my hands on the car so ya we' are doing the same swap my email is camro44@hotmail.com you could send them there thanks

I'll get them scanned as soon as I can, and send them too you.

[94ss s10]

thats good because my air injection pump is ceased anyways, whats the point of the charcole canister to me it just looks like it sucks fumes out of the gas tank

[94ss s10]

thanks c ren

[c_ren]

I just set my motor in last night. I had to remove the a/c compressor. If you want to run your a/c you are going to have to notch your frame for it to fit.

[94ss s10]

really thats shitty was that with the lt1's compressor or the s10's that one is a bit fater

[c_ren]

The one off the lt1. I am going to mount the one off of my s10 on the driver side where the coil is and relocate the coil somewhere. Just make sure you pull the compressor off of the lt1 before you set it in or you will have to pull it back out.

[94ss s10]

that puts a bit of a dent in future plans i was planning to mount a eaton m60 supercharger from a 3800 seires motor on the drivers side with a bit of modification, there farly cheep to pick up i gess ill see if i can just put up with the heat stuck sitting in trafic, what are you putting were the compressor was

[c_ren]

I think I am going to have to put an idler pulley there so I can route y belt properly

[94ss s10]

know of any pre fit kits or is this going to have to be a junkyard peice together deal

[dragsdaily]

i did some calling around today (drive clean) they told me v8 in s10 would be hot rod but we new this already. so i call a testing shop they told me if it's under hotrod all you really need is a cat and the proper gas cap to test. but if it fails then you have to start messing with it. maybe even putting the smog crap back on.

[c_ren]

Quote: Originally Posted by 94ss s10

know of any pre fit kits or is this going to have to be a junkyard peice together deal

Mine is going to be a piece together deal. I am making my own brackets for what I need

[94ss s10]

yea i think i will piece mine together too im aproching the 3000$ mark and i still need headers any one know a model # for headers the guy at karbelt is trying to tell me the bolt patteren is stightly different from regular 350 s10conversion headers to fit on the lt1, (and thanks for the info "dragsdaily")

[The Stunningman]

Quote: Originally Posted by 94ss s10

yea i think i will piece mine together too im aproching the 3000$ mark and i still need headers any one know a model # for headers the guy at karbelt is trying to tell me the bolt patteren is stightly different from regular 350 s10conversion headers to fit on the lt1, (and thanks for the info "dragsdaily")

Use the standard headers SBC part for yours you have iron heads.

[Weldorguy]

Ok does anyone know if the stock LT1 manifolds out of a 95/96 9c1 will work for this swap? also mine is a 95/96 and I was wondering if I had the D shaped ports or O shaped ports...


Thanks in advance. I can weld anything so if i have to cut and relocate some sensor on my manifolds believe me when i say i can do it.



Best Regards

J

[bagged85]

d shape were only on the manifolds so any s10 v8 headers would work ok, i heard the stock manifold on the passenger side will hit the frame. im about 4 hours from you and doing the same thing. 94 s10 using a 96 caprice 9c1, let me know how the wiring goes, im planning on using all wires from the caprice but no clue what comp does what or what comp runs my guages, all other comps have been ripped out since i put in a carbed 350 last year.

and since you will need e-test every 2 years you should put all sensors back on as well as the 4 sensors infront and behind the cats

[c_ren]

I just wanted to give y'all some info on the VATS/Passkey system that you will need to know if you are installing a LT1. Go to my site (http://csansing.cyanidehosting.net/) click on the projects tab. Download the VATS Module Information file. The link that says my truck will give a pic of where the wires are that run the factory gauges. This is all for a 94 dime.

[94ss s10]

i dont think i need to put restors in the pass key system as long as i power the pass key system the motor started and ran fine but when i dont power it motor starts for a few seconds then shuts off, before i took the motor out of the donor i isolated the wires i needed all the way to under the hood and the only wires i acculy needed to make it run was the igniton set, passkey stuf, and fuel pump power wire, i still have to figure out which are for the gauges data port and warning lights, does any one know if the motor should sit level or a certen #of degre leaning to the rear, mine has a prity good slop to the rear going on

[HectorM52]

Aight guys... Don't be afraid of notching the frame. It's a simple cut and re-weld. You just need to get some sort of steel angle and get it welded in there. OR, there is an A/C Delete pulley that is made to specifically bolt in place of the A/C compressor. GM sells them or go to a camaro forum and do some searching around.

And why do you guys in Canada need A/C either way? Does it get hot up there???


You can yank the EGR and AIR crap as well as the charcoal canister stuff. Again, get on a camaro forum (try www.camaroz28.com ) and do some searches for custom tuning. You can send your PCM to people and have the correct stuff programmed in or out. Including the following: delete VATS, delete AIR, delete EGR, delete charcoal canister, program in whether you have an auto or manual tranny, rear-end ratio, tire size, etc...

The OBD-I LT1 really is a versatile system. I think that if you have a '96 motor you have an OBD-II system which is little more difficult to work with (and I don't have much experience with them as there is more crap to deal with). So hopefully you guys have OBD-I. Oh, and if you do happen to have OBD-II you can "change" a few things and go back to OBD-I. Not too bad of a procedure. Again, just do a search.

I'll try to go back and see if you guys had any other issues later.