LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

84 z28 lm7 swap

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Old May 14, 2015 | 12:09 PM
  #51  
Mookie83's Avatar
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From: Arlington, TX
Car: 82 Camaro(Unicron)
Engine: LQ4 5.3
Transmission: 350 Turbo
Axle/Gears: 2.73 Limited slip
Re: 84 z28 lm7 swap

Originally Posted by f-bodyz28
yea its the f-body accessories.

and i did get the crossmember bolted up. Im honestly really disappointed on its fitment... for the money i figured it would fit much better.. it was late so i didnt get any pictures, ill post them tomorrow to show exactly what im talking about. the drive side seems to have plenty of room for my long tubes, but just looking at the passenger side with everything, im having some doubts. they are suppose to be here thursday tho.
Does it have to be a certain year LS F body? I started my motor for the first time yesterday. It felt good to actually hear it'd heart beat for the first time.
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Old May 14, 2015 | 05:31 PM
  #52  
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

na, all f-body accessories from 98-02 are the same.
nice! you put a cam in it? i was hoping to start mine this weekend but i cant get the last few parts till next saturday disappointing
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Old May 14, 2015 | 07:03 PM
  #53  
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

got my hawks long tube headers in the mail today. and my trans bushing for the 4l60e
well the bushing ofcourse didn't line up with the hole in the hawks crossmember ( no big deal ) ill just make the hole bigger. But what im really concerned about is the shifter linkage with these headers. its a super tight fit. and the 3rd gen cable is way to long in the bracket to line up right. I have the bracket from the 700r4 still. im thinking im going to have to get a 4th gen cable and modify that one?
also from the trans shop they put the truck shift module or what ever that thing is back on -.- so now I need to get the 700 one back for the linkage to even bolt up.
ive seen some people modify the cable but there doesn't seem to be to many people out there running a 4l60e.. so any one have any suggestions on what worked the best with minimal modifying ?


oh and the header on the passenger side actually has a decent amount of space next to the frame. don't think ill have to bend it out like ive seem some people having to do on here.
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Old May 19, 2015 | 08:09 PM
  #54  
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

did some more work on the car tonight. finally got the transmission dipstick in ( I can see why people install this first before dropping it in ) and the crossmember all lined up properly.

then I went to attempt my shift linkage and this is when I got really frustrated.
when I got my trans back, the guy gave me back both ends from the 700r4 and 4l60e. and both brackets. well ill show you the pictures of what im running into..


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I found this end to work best. I still need to drill out that little end. but end blocks part of the o2 sensor hole...


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and then the 700r4 bracket hangs down into the collector.. I think I an cut the bottom of the bracket off and then bend it out of the way or something maybe. Also the cable sits so close to the header I feel like it will melt from the heat.


At this point im not sure what I should do and im contemplating on selling this 4l60e and buying a t56.


I am running the hawks headers with a 3inch collector. maybe I should of went smaller?


A buddy of mine told me that the shift rod and be replaced with a shorter one, I just have to drop the pan and it slides out after removing the bolt that holds it in. I mean I could try that since the transmission is empty.


and ideas guys?
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Old May 19, 2015 | 08:34 PM
  #55  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

could the shift rod be the problem? since it had the external neutral safety switch so its sticking out to long?
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Old May 19, 2015 | 11:33 PM
  #56  
Mookie83's Avatar
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Joined: Feb 2014
Posts: 7
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From: Arlington, TX
Car: 82 Camaro(Unicron)
Engine: LQ4 5.3
Transmission: 350 Turbo
Axle/Gears: 2.73 Limited slip
Re: 84 z28 lm7 swap

Originally Posted by f-bodyz28
na, all f-body accessories from 98-02 are the same.
nice! you put a cam in it? i was hoping to start mine this weekend but i cant get the last few parts till next saturday disappointing
I had it running for 5 min till my water pump pulley ran off the engine. The msd box never set the timing to hear it at idle. This is my top end kit.

Brand New COMP Cams *****' THUMPR Hydraulic Roller Complete Camshaft Kit for GM LS-Series V8 Applications with 3-Bolt Core. Part #CK54-601-11. Kit includes: cam, lifters, valve spring kit, timing set & pushrods (specific part #'s for kit contents listed below).

Cam Specs & Description:

Valve Lash (IN/EX): Hyd / Hyd
RPM Range: 2300-6600
Advertised Duration (IN/EX): .283" / .303"
Duration @ .050" (IN/EX): .227" / .241"
Valve Lift w/1.7 Ratio Roller Rockers (IN/EX): .563" / .546"
LSA: 109°
Cam Description: *****' Thumpr - High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
Kit Components:
54-601-11 (Hyd. Roller Camshaft)
850-16 (Hyd. Roller Lifters)
7955-16 (Hi-Tech 7.400" Pushrods)
26918-16 (High Performance GM LS-Series Valve Springs)
774-16 (Steel Retainers)
623-16 (High Performance GM LS-Series Valve Locks)
511-16 (Viton GM LS-Series Valve Seals)
4705-16 (Spring Seats)
7106 (LS-X Double 9-Keyway Timing Set)
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Old May 20, 2015 | 11:42 AM
  #57  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

i ended up going back to the transmission shop and got my hands on the shorter shaft without the space for the neutral safety switch. im guessing this should take care of that problem. ill just need to modify the bracket to clear the collector .
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Old May 27, 2015 | 06:34 PM
  #58  
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Joined: Feb 2014
Posts: 7
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From: Arlington, TX
Car: 82 Camaro(Unicron)
Engine: LQ4 5.3
Transmission: 350 Turbo
Axle/Gears: 2.73 Limited slip
Re: 84 z28 lm7 swap

Originally Posted by f-bodyz28
well did a little part shopping today. got pretty much the basic stuff for right now. its nice having a warehouse near by that just deals with ls1 and up firebirds and camaros. the place is called ls candy shop. they have a website if anyone needs something just check them out. real reasonable prices.

here what i scored today. still need a few more things tho.
Hey buddy what year are the accessories you went with? In did you get the balancer as well?
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Old May 27, 2015 | 06:47 PM
  #59  
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Joined: Feb 2014
Posts: 7
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From: Arlington, TX
Car: 82 Camaro(Unicron)
Engine: LQ4 5.3
Transmission: 350 Turbo
Axle/Gears: 2.73 Limited slip
Re: 84 z28 lm7 swap

Originally Posted by f-bodyz28
well did a little part shopping today. got pretty much the basic stuff for right now. its nice having a warehouse near by that just deals with ls1 and up firebirds and camaros. the place is called ls candy shop. they have a website if anyone needs something just check them out. real reasonable prices.

here what i scored today. still need a few more things tho.
Hey buddy what year are the accessories you went with? In did you get the balancer as well?
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Old Jun 1, 2015 | 05:47 PM
  #60  
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

im not sure of the year. it all came off the same Camaro. and yea you need the balancer to run the accessories properly.






so im looking for the diagram I believe pocket had made showing the part numbers for the fuel fittings when using the 255 pump and corvette fuel filter.
ive been looking all over for that diagram but I cant find it anywhere
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Old Jun 1, 2015 | 06:42 PM
  #61  
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Car: 92 Z28
Engine: ls3
Transmission: t56
Axle/Gears: 4.11
Re: 84 z28 lm7 swap

https://www.thirdgen.org/forums/ltx-...formation.html

Post #9 for fuel and pn's.
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Old Jun 2, 2015 | 04:14 PM
  #62  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

awesome! thanks
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Old Jun 2, 2015 | 06:03 PM
  #63  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

have a quick question. im running hawks long tubes and their crossmember. im going to use the stock location for the torque arm on the transmission tail housing. does the hawks y pipe fit using the stock arm location? ive seen pics but they are running a different arm location.
want to know before i order it.
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Old Jun 6, 2015 | 08:45 AM
  #64  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

last night got a lot done, starter, headers, plugs wires, torque arm bracket and arm, power steering lines, drilled and tapped the hole for the alternator.

today i plan on dropping my gas tank, and run all my lines.

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i dont know if you guys can see it in that picture, but that collector on the passenger side is right up against the frame rail.. :l
not sure what im going to do. i might put a little heat on it and use my pry bar to see if i can move it over any.
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Old Jun 6, 2015 | 09:36 AM
  #65  
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Car: 91 Trans Am
Re: 84 z28 lm7 swap

Unbolt the trans mount and push the tail towards the drivers side. Once there is ample clearance for both collectors, drill a new hole in the crossmember. From a distance, your trans mount looks like a generic poly, so it likely has three holes. Just the far right one if it lines up
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Old Jun 6, 2015 | 07:48 PM
  #66  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

thats not a bad idea, not sure why i havent thought of that.
well got most of my fuel lines ran today. forgot to order one for AN fitting for the fuel pump so thats gonna have to wait till tuesday.
also got the engine harness all ran, tomorrow im going to run the interior harness and fuel pump wiring and what not


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this is what i used to cut my AN line. 15$ from homedepot and they cut through it like butter. just tape where you want to cut and it doesnt fray
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Old Jun 6, 2015 | 07:53 PM
  #67  
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Re: 84 z28 lm7 swap

[QUOTE=f-bodyz28;5912542]

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[QUOTE]

Mustang parking only??? What the hell?? lol. Nice looking camaro dude!
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Old Jun 7, 2015 | 02:27 PM
  #68  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

haha im using my parents garage for this build since i dont have one at my house. but they have a 65 (64 and a half) mustang so that explains the sign

well got a little more done today. its the small victories that keep you going haha

got the harness all set up, mounted the relays and fuseblock. figured out where i want to mount the ecu. having my dad make me a custom bracket at his machine shop this week for it. just need to run a had full of wires into the car, and extend the OBD port harness to reach inside the car as well.

heres some pictures

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i ended up trimming this end flat for the cable to stick out so i could clamp it together
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and this is not where im going to mount the computer, i going to place it on the side of the fender, using the flat spots where the washer bottle used to sit
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now this is the tach wire that was hooked up to the distributor on the old motor. now i want to keep my stock tach so i do need to keep that resistor or do i eliminate it and just connect that wire with the wire from my harness?

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Old Jun 7, 2015 | 02:29 PM
  #69  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

also removed my radio ( didnt listen to it before anyways) i think this looks better

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Old Jun 13, 2015 | 08:33 PM
  #70  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

well hacent posted in a few weeks.
have been super busy the past few weekends.
got my dash complete, oil sender done and a bunch of other stuff, ill just post the pictures

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figured out id run my steam line this way
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well tomorrow i plan to start it up sooo hope it all goes good
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Old Jun 25, 2015 | 09:50 PM
  #71  
Mookie83's Avatar
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Joined: Feb 2014
Posts: 7
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From: Arlington, TX
Car: 82 Camaro(Unicron)
Engine: LQ4 5.3
Transmission: 350 Turbo
Axle/Gears: 2.73 Limited slip
Re: 84 z28 lm7 swap

Originally Posted by f-bodyz28
well did a little part shopping today. got pretty much the basic stuff for right now. its nice having a warehouse near by that just deals with ls1 and up firebirds and camaros. the place is called ls candy shop. they have a website if anyone needs something just check them out. real reasonable prices.

here what i scored today. still need a few more things tho.
Hi buddy I just got some F body accessories. But I ran in too a problem. How to mount the low alternator. It looks as if I can only use one hole in the block to mount it? How did you mount yours?
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Old Jun 26, 2015 | 09:26 AM
  #72  
R13_Braz's Avatar
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Joined: Dec 2014
Posts: 431
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From: Garland, TX
Car: 2014 Z28 #80
Re: 84 z28 lm7 swap

You can mount it with just the one hole and the rear bracket, but there's a boss that can be drilled and tapped for the top hole. Do a search, there are several walk-through's and write-ups available.
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Old Jun 29, 2015 | 03:26 PM
  #73  
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From: TN
Car: 92 camaro/99 gmc Z71
Engine: 357/5.3
Transmission: built 700r4 4500 stall/4l60
Axle/Gears: 4.56/?
Re: 84 z28 lm7 swap

Did you ever get it started up?
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Old Aug 25, 2015 | 09:55 PM
  #74  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

seems like its been forever since i updated this last.
well ive had the car running for a couple months now and im so happy with it.
ran into a few little problems here and there but i expected it, i also had picked up a 3.42 rear end from a 4th gen trans am, fit nicely and for 250$ i really couldnt pass it up. stops alot better now with disc brakes all the way round.

well heres some pictures ive been saving up on my phone and ill try to upload a video of it running.

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Old Aug 25, 2015 | 10:05 PM
  #75  
f-bodyz28's Avatar
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From: buffalo NY
Car: 1984 z28
Engine: first gen small block 350
Transmission: 700r4
Axle/Gears: stock
Re: 84 z28 lm7 swap

waiting for my f.a.s.t hand held tuner to come in the mail, right now she runs high 8's in the 1/8 mile which isnt to bad i suppose.
hoping to see a bigger improvement once i get it dialed in better
i have just ove 1700 miles on her now, she flys down the high way. im really surprised how much more power this 5.3 has over the built 355 i had in before. over winter im planning on a turbo set up


heres a little video i took the other day.
(click the picture and it should play)


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