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#151 |
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Join Date: Jul 2012
Location: Whitehorse yukon
Posts: 1,218
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Re: Doing LS Swap - I have no idea what I'm doing!
From what I have seen there cheap for a reason cheaper connections wire guages may be smaller no heat shrink on solder joints just cheap tape
The original harness was much better made many of the ones that cost twice as much are proubly much better made i can't say how much better made as the only aftermarket harnesses i have bought are M&h factory reproduction ones which are very well made https://m.youtube.com/watch?v=FAf1anIjxgo |
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#152 |
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Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
Exhaust manifold question....
Will stock manifolds from a 2000 Z28 fit up and work? My engine is a 2003 LS. I found a set for sale for $45. If they will work, thought about grabbing them to use.
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 |
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#153 |
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Join Date: Mar 2009
Location: CA
Posts: 813
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Re: Doing LS Swap - I have no idea what I'm doing!
Yes. I have a set I was going to run as they fit well, but preferred the smaller collector of the ls3 version. Just verify that they are indeed f body manifolds
Last edited by Joemomma1; 02-01-2021 at 01:34 PM. |
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#154 | |
Registered User
Join Date: Mar 2009
Location: CA
Posts: 813
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
Don't go with the Chinese harnesses as they can get you by but you are not there yet to troubleshoot or repair them should you need to. You're already half the cost of a quality harness. |
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#155 | |
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Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 |
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#156 |
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Join Date: Jan 2019
Location: Bonner Springs, KS
Posts: 56
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Re: Doing LS Swap - I have no idea what I'm doing!
Probably already mentioned, but stock harness rework is simple. Just flow LT1swap instructions (with pictures!!) Your basically just removing the stuff you don’t need. To me the biggest benefit was a better appreciation of what each circuit does. They’re not pretty, but they’re cheap. What have you got to lose?
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#157 | |
Registered User
Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 |
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#158 |
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Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
Another question I have...
Engine placement. Is that a trial and error thing? I have ICT adapter plates and stock '71 motor mounts. The adapter plates have 4 mounting points to position the motor forward/back. Is there a way I can get some measurements on the truck to give me an idea of where to put the mounts? Or, will I just have to drop the motor in, try it out, and then adjust the mounts as needed?
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 |
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#159 | |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,124
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
So I guess to answer your question it is trial and error. If you go to the I CT website it says what each set of holes does. I believe the first hole is .1” forward the second hole is .6” I am not sure but the third set of holes it’s like 1.7” or 1.8”. Off the top of my head I can’t remember what the forward set of holes measurement is but it’s easy to find on their website.
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#160 | ||
Registered User
Join Date: Mar 2009
Location: CA
Posts: 813
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
Then don't do it. Send that work out and focus on something else to keep the project moving. Anything that can be completed in the time you have is still progress. Quote:
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#161 |
Registered User
Join Date: Jan 2019
Location: Bonner Springs, KS
Posts: 56
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Re: Doing LS Swap - I have no idea what I'm doing!
Eagle chief: the wiring is tedious, cutting the wrong wire not much of a concern, you pull the pins out of the connector and then the wire from the loom. Would be hard todo it 20 minutes at a time though!
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#162 |
Senior Member
![]() Join Date: Jul 2015
Location: Warrenton VA
Posts: 1,048
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Re: Doing LS Swap - I have no idea what I'm doing!
If you want to save the couple hundred of dollars on the harness you can find the time to make it work. I understand you have a new born but maybe the engine swap needs to be shelfed for a little, adjust your time frame, or stop getting hung up on wiring, that should be pretty much your last step. Get the engine in, trans in, figure out exhaust, plumbing, sensor placement, fuel system, shifter linkage, PS hook up, etc, then worry about wiring in a few months when maybe the kid is sleeping a little more normally, and you can spend an hour at a time on the harness. Plenty of people have dove into a harness with zero automotive electrical knowledge, its not hard, just takes a little time. Get a 4x8 sheet of ply wood and lay the harness out on it so it's not just a jumbled mess of wires in a box, then you can ID the pins you need and don't, take your removal tool and slide the wire out, throw it in a box for spare wires and pins and move on to the next. It's pretty straight forward when you let your self take your time and don't try to bite off more than you can chew. It sounds like you're giving yourself an "overhauling" or TV style time line, that's just flat unrealistic, especially given the fact you can't work on the truck full time. Make your self a legitimate list of things to do and conquer them one step at a time. The board is always here to help and answer questions so you can have the info you need before you walk into the garage not after.
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71 c-10 Long Bed, under the knife for a No Limit Engineering Wide Ride Chassis Pack and coil over static drop. 07 Silverado Classic 2wd 95 Camaro 427SBC/TH350 |
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#163 |
Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,559
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Re: Doing LS Swap - I have no idea what I'm doing!
I had a 1999 Trans Am and the stock manifolds did not fit. Headers might have. I went with Speed Engineering Headers and they needed some work too. I have this in a 72 Blazer with ICT mounts and all the way back so the Stock oil Pan would clear. If you choose to purchase a harness, someone on here will snatch up the stock unit.
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#164 | |
Registered User
Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
"There are 4 positions for maximum adjustment of engine (from .100" forward of OEM bellhousing position [due to bolt interference, OEM location is not possible for any brand of flat style swap plates] ~forward most position shown in photos~, Secondary positions are: .600", 1.86", and 2.36" engine moved forward) These swap plates will shift the crankshaft centerline up .177" above factory small block location." I currently have mine set at the #2 position. I may move them up, but I wonder if it will make a difference that my truck did not have the factory transmission. Trial and error it will be. ![]()
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 Last edited by EagleChief; 02-08-2021 at 04:48 PM. |
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#165 | |
Registered User
Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 |
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#166 |
Registered User
Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
So, fun story...
Friday evening after the kids were asleep, I went out to the garage to try and extract the stuck exhaust manifold bolts. Center drilled the first one (flush with head), drilled a slightly larger hole. Then tried a slightly larger drill bit - NOPE! That bit snagged on the edge of the hole, and, SNAP!! Broke it in to 3 pieces! So, I get the extractor out. Work it into the bolt... won't work. I try it a few times - back it out, put the extractor back in, try it, back it out, etc. Nothing. Spray it down with PB Blaster for the 3rd or 4th time, try it again. SNAP! Busted the bolt extractor right at the head, flush with the bolt!!!! WTH?!! After that, I didn't even try the other bolts. Off to bed I went, defeated... for the time being. I'll be back at it. I have some new bits ordered. Watched a couple of "how to" videos to see if I can get it out of there. If not, guess I'll have to pull the heads (don't want to do), and bring them into my shop to get machined. To Be Continued... ![]()
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 |
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#167 |
Senior Member
![]() Join Date: Jul 2015
Location: Warrenton VA
Posts: 1,048
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Re: Doing LS Swap - I have no idea what I'm doing!
I understand the "no" time line, my truck has been off the road for like 5, going on 6 years, and has been in pieces for the better part of 3 haha. Making a big written list (I do them in the notes section of my phone so I can look and ad when things pop into my brain), like engine, body, exhaust, plumbing, then smaller lists like brake lines, fuel lines, coolant, trans cooler, etch will help you out tremendously. Its super daunting, but little by little you start to make progress when you can and then you look back your list that keeps getting smaller and BAM, your driving the truck haha.
That really sucks about the bolt, do you know any one with a small 110V MIG welder they can bring over, it's a super fast job to tack onto the bolt and then weld a nut on and back it right out. Especially with it out of the truck, would honestly take 15 min. If I was near you I'd gladly swing by, but VA isn't near OK.
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71 c-10 Long Bed, under the knife for a No Limit Engineering Wide Ride Chassis Pack and coil over static drop. 07 Silverado Classic 2wd 95 Camaro 427SBC/TH350 |
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#168 | |
Registered User
Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 |
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#169 |
Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,038
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Re: Doing LS Swap - I have no idea what I'm doing!
The bad (or good) is that those extractors are super hard metal. You won't be able to drill them out with common drill bit. I know its not fun but I'd pull the heads and send them to a machine shop for repair..
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#170 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,124
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Re: Doing LS Swap - I have no idea what I'm doing!
The welder trick works great. Especially on aluminum heads. And welding the nut onto the bolt even though it’s a little down in the hole heats up the bolt and now with the nut it usually comes out pretty easily. Good luck.
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#171 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: Doing LS Swap - I have no idea what I'm doing!
I never bother trying an easy-out unless I know the broken bolt is not seized up. They always just snap off. Welding a nut over the broken bolt is the best way to get them out. You need a welder big enough to burn into the broken bolt.
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#172 |
Registered User
Join Date: Apr 2012
Location: Chatt Tn
Posts: 969
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Re: Doing LS Swap - I have no idea what I'm doing!
the bolts are locktited in, and require heat to get them to come loose. only way I've gotten them to come out.
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#173 |
Registered User
Join Date: Sep 2016
Location: Tulsa, OK
Posts: 415
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Re: Doing LS Swap - I have no idea what I'm doing!
So, I'm still looking for some exhaust manifolds. Found a couple of sets of interest. A set from a 2017 6.2L Camaro, and also a set from a 6.2L LS3 Corvette (not sure of the year, yet).
Anyone know if those will work out for me? EDIT**** Well, found out the Camaro set is an LT engine, so that's out. **EDIT 2** Buying the Corvette manifolds. I'll see if those will work. I know they'll bolt up to the engine, just need to see if they'll work when installed.
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1971 C10 - Hugger Orange/White My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=780197 LS Swap Thread: https://67-72chevytrucks.com/vboard/...d.php?t=811460 Last edited by EagleChief; 02-24-2021 at 10:48 AM. |
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#174 | |
Registered User
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
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Re: Doing LS Swap - I have no idea what I'm doing!
Quote:
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
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#175 |
Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,038
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Re: Doing LS Swap - I have no idea what I'm doing!
Just FYI. I'm working on a 1980 Camaro project with a 6.2/4L60E swap. I typically use Howell harness and computer package. I was a bit shocked to learn their lead times are 4-6 weeks. So I called Speartech, I've used them in the past also. Their lead times are 11-13 weeks! In years past it was 2-3 weeks. So plan ahead.
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