C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

1976 Stingray LS1 Conversion Started

Thread Tools
 
Search this Thread
 
Old Mar 26, 2011 | 01:46 PM
  #1  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default 1976 Stingray LS1 Conversion Started

Hello Everyone,

I have just started the work on my LS1 conversion. I drove to the junkyard this morning and bought the parts today.

Got a complete running LS1 Engine, 4 L60 E Transmission, Complete Wiring harness, Complete AC system.

Basically the whole setup, I got it for $1700 (This is in Kuwait) How much would this usually cost in the US!?

I found a shop that will do the swap during 2 weeks (fingers crossed doesn't take longer) and will charge $1800. I will basically get the car running from him.


Only problem/question now is:

- How will I hook up my gauges? (I'm an extreme newbie with no tech background) but the mechanic said he might not be able to get the gauges working.

Photos added below

Last edited by Q8C6Vette; Mar 26, 2011 at 05:18 PM. Reason: Photos
Reply
Old Mar 26, 2011 | 01:59 PM
  #2  
cm2dinger's Avatar
cm2dinger
Racer
 
Joined: Sep 2010
Posts: 430
Likes: 0
From: SIGONELLA Sicily
Default

Whare at in Kuwait?
Reply
Old Mar 26, 2011 | 04:34 PM
  #3  
Mastr Fab's Avatar
Mastr Fab
Burning Brakes
15 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Oct 2009
Posts: 787
Likes: 28
From: Fort Wayne Indiana
Default

I believe there is a plug at the back of the head on the pass. side that you can install a water temp sender in that will work with your stock gauge. The same is true for the oil pressure. You can drill and tap the bolt on aluminum block in the area of the oil filter and install a sender.
Reply
Old Mar 26, 2011 | 05:13 PM
  #4  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

cm2dinger, Junkyard in an area called "Amghara" The top at "Shuwaikh"

Here are some photos of today's Junkyard trip and my new LS1.














Here is my Engine getting cleaned up:

















Reply
Old Mar 26, 2011 | 05:18 PM
  #5  
72LS1Vette's Avatar
72LS1Vette
Safety Car
20 Year Member
 
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Default

You can use your electric tach with the LS1. The pulse count needs to be changed in the ECM for it to read correctly. For the speedometer you will either have to buy an electric speedometer or use a Cable-X box to drive the original speedo. There may be places that convert speedometers but I'm guessing the conversion would cost more than a Cable-X. I made a fitting with 2 barbed ends and a T-connector for my original temp sender and plumbed it into the heater hose. As someone else said, you can tap into the plate right above the oil filter for either a mechanical or electric oil pressure gauge sender.



Rick B.
Reply
Old Mar 26, 2011 | 05:21 PM
  #6  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Hey Rick, thanks for the info.

If I was to change the gauges to electrical, which brand would you or the guys here recommend?! Maybe a more "cleaner" and easier to read gauges.

Oh, I almost forgot. I just recently installed ceramic headers to my older 350 Engine. I assume that won't fit on the LS1 correct!? if so, Can I keep my exhaust pipes and just buy new headers? or?

Last edited by Q8C6Vette; Mar 26, 2011 at 05:22 PM. Reason: added info
Reply
Old Mar 26, 2011 | 05:51 PM
  #7  
72LS1Vette's Avatar
72LS1Vette
Safety Car
20 Year Member
 
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Default

Originally Posted by Q8C6Vette
Hey Rick, thanks for the info.

If I was to change the gauges to electrical, which brand would you or the guys here recommend?! Maybe a more "cleaner" and easier to read gauges.

Oh, I almost forgot. I just recently installed ceramic headers to my older 350 Engine. I assume that won't fit on the LS1 correct!? if so, Can I keep my exhaust pipes and just buy new headers? or?
I decided to keep my stock gauges and make them work. I swapped my mechanical 72 tach face to 75 electric internals. I just installed a Cable-X box a couple of weeks ago to keep the original speedo. There are many gauges that will fit into the dash. Dakota digital has a new set of gauges that would combine all of the gauges you have now into 2 5" gauges that fit in the speedo/tach locations. Frees up the center console for anything custom you would want to do.

One of the problems I see with most electric speedo/tach conversions is the directionals and high beam indicators. There are none. The Dakota Digital package has these included in the dial faces. These are analog-looking gauges by the way, not digital readouts. They are expensive though, but they look great.

You are correct about the headers. LS1 heads have evenly spaced ports. The manifolds that you have might work fine. You 'll have to check clearances once the engine is installed. Hooker has some shorty manifolds that give plenty of clearance in the engine bay (I have a set). Speedhound used to sell long-tube headers but I think he is out of business. Search around - Josh (Custom Image Corvettes) is selling some headers in the near future I believe.

You can keep your exhaust from the trans crossmember back and just have new pipes fabbed to mate up with it. A 2.5" exhaust with an X-pipe works well and sounds great with the LS1.

BTW, now is a good time to put in a more radical cam before the install into the car.

Shameless plug for my exhaust system. I just like the way it sounds.





Rick B.

Last edited by 72LS1Vette; Mar 26, 2011 at 06:02 PM.
Reply
Old Mar 27, 2011 | 05:06 AM
  #8  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Hey Rick,

Thanks a lot for the insight about the gauges. I'll check out Dakota and see. I might keep the originals, but will decide soon.

As for the Headers, its a shame cuz I just got those headers for the 350. Less than 2 weeks on my older 350. How much you think they would be worth?

As for the cam, I was thinking about this:

http://www.lingenfelter.com/mm5/merc...egory_Code=C31

And

http://www.lingenfelter.com/mm5/merc...Store_Code=LPE

You think that will be good?! or should I look at something else?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Mar 27, 2011 | 06:54 PM
  #9  
72LS1Vette's Avatar
72LS1Vette
Safety Car
20 Year Member
 
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Default

Originally Posted by Q8C6Vette
Hey Rick,

Thanks a lot for the insight about the gauges. I'll check out Dakota and see. I might keep the originals, but will decide soon.

As for the Headers, its a shame cuz I just got those headers for the 350. Less than 2 weeks on my older 350. How much you think they would be worth?

As for the cam, I was thinking about this:

http://www.lingenfelter.com/mm5/merc...egory_Code=C31

And

http://www.lingenfelter.com/mm5/merc...Store_Code=LPE

You think that will be good?! or should I look at something else?
You could probably sell your headers quickly on the forum but your location would make shipping pretty expensive. There are guys from Australia and New Zealand on the forum though so maybe some of them would be interested.

I'm not a cam expert so I really can't offer any opinions on what you should choose. My engine has a Thunder Racing 224/112 cam in it that was there when I bought the engine. I like the lumpy idle and the engine runs really strong. You will have to have some tuning done if you change the cam so make sure there is someone local who can do a dyno tune or look up one of the mail-order tuners for a basic tune.

The guy I bought my transmission from had a GM Hot Cam in his LS1 and it had a similar idle to mine. That's another cam to consider.

If you don't already have an account at ls1tech.com you should get one. There is a wealth of info on engine mods there.



Rick B.
Reply
Old Mar 28, 2011 | 11:21 PM
  #10  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Thanks Rick. There is a guy who has a 68 Vette wants to buy my headers, I think they are from Summit Racing don't know the brand.

As far as today went, I towed my car along with the LS1 engine transmission to another shop. The guy will basically do everything on the car from Engine installation to complete new wiring to the harness. I spend $600 more on misc stuff like wires, hoses, oils, clippers, engine mounts, and a Camaro oil pan.

In addition, it will cost me $2700 for the complete installation

I know this is a lot of money for just installation, but believe I went all over the place, and this guy does the best clean/professional installation here.

The only thing is he said the car will be ready 12/5/2011 that's one and a half month from now!! I don't know if I'll be able to handle that

I'll be passing by often, I'll post some photos and updates regularly.

Currently I'm only missing:

1. Headers

2. Air Intake

Anyone got any suggestion on the above?
Reply
Old Mar 29, 2011 | 01:06 PM
  #11  
mffi115's Avatar
mffi115
Pro
15 Year Member
 
Joined: Dec 2004
Posts: 590
Likes: 2
From: Fairfield CT
Default Here's my project

Link to my project below:

Check the LS conversion sticky at the top of this forum: http://forums.corvetteforum.com/c3-t...-their-c3.html

Almost all your questions will be anawered there. BTW, I like that junk yard!! You might want to consider doing a parts scrounging service for forum members. Shipping costs might be prohibitive, though.
Reply
Old Mar 29, 2011 | 08:10 PM
  #12  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Originally Posted by mffi115
Link to my project below:

Check the LS conversion sticky at the top of this forum: http://forums.corvetteforum.com/c3-t...-their-c3.html

Almost all your questions will be anawered there. BTW, I like that junk yard!! You might want to consider doing a parts scrounging service for forum members. Shipping costs might be prohibitive, though.

Yeah, I have read pretty much all the posts on here regarding the conversions, am just trying to get the best performance/price out there from members who have done this already.

In regards to the junk yard, it's pretty nice. Am heading there tomorrow morning. The mechanic says he needs a C4 corvette driveshaft to start working. (any idea why?)

And if anyone is looking for a specific part, no problem just let me know, no worries about the shipping I get a HUGE discount with my Fedex account.
Reply
Old Mar 29, 2011 | 08:35 PM
  #13  
72LS1Vette's Avatar
72LS1Vette
Safety Car
20 Year Member
 
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Default

Originally Posted by Q8C6Vette
Thanks Rick. There is a guy who has a 68 Vette wants to buy my headers, I think they are from Summit Racing don't know the brand.

As far as today went, I towed my car along with the LS1 engine transmission to another shop. The guy will basically do everything on the car from Engine installation to complete new wiring to the harness. I spend $600 more on misc stuff like wires, hoses, oils, clippers, engine mounts, and a Camaro oil pan.

In addition, it will cost me $2700 for the complete installation

I know this is a lot of money for just installation, but believe I went all over the place, and this guy does the best clean/professional installation here.

The only thing is he said the car will be ready 12/5/2011 that's one and a half month from now!! I don't know if I'll be able to handle that

I'll be passing by often, I'll post some photos and updates regularly.

Currently I'm only missing:

1. Headers

2. Air Intake

Anyone got any suggestion on the above?
I'm using the Hooker shorty LS1 headers. Probably not the best thing for ultimate performance but they at least dump into a 2.5" pipe.

A lot of us just use a 90-degree bend off of the throttle body with the MAf connected to that and an air filter. Again this is not the ideal setup, but you will have to design somethimg custom to duct cold air into the engine. I have the stock small-block radiator housing in my 72 so there is a plate on the passenger side. I may cut a hole in it an route piping down to the bottom of the radiator to get some cool air into the engine.



Rick B.
Reply
Old Mar 29, 2011 | 10:09 PM
  #14  
Evil Empire's Avatar
Evil Empire
Advanced
 
Joined: Jun 2010
Posts: 98
Likes: 0
From: Carol Stream IL
Default

Jealous!!! a month and a half for a LS swap thats awesome. I bought my LS last summer and still havent finished building the engine. Hopefully I get the heads on next week and finish the wiring. Fingers crossed I get it driving this summer.
Reply
Old Mar 30, 2011 | 08:45 AM
  #15  
mffi115's Avatar
mffi115
Pro
15 Year Member
 
Joined: Dec 2004
Posts: 590
Likes: 2
From: Fairfield CT
Default

The mechanic says he needs a C4 corvette driveshaft to start working. (any idea why?)

Unless for some reason it's a direct bolt in, no idea. If I'm correct, you need to cut the front u-joint and the part that attaches to the tranny tail shaft (senior moment - can't remember the name) off the donor drive shaft and weld it to your C3 drive shaft. The C3 driveshaft will need to be shortened - not sure because I'm running a TKO 500 that came with a custom driveshaft.

Can't think of any parts I need now, but thanks for the offer. Oh, unless there's a real cheap LS7 laying around there.

Did you check my project out? http://LS273Stingray.blogspot.com I need to update the blog since I took a break during the winter. I don't have a heated garage and my wife needed "her" side of the garage to park in during the heavy snows. I'm doing some fiberglass repair work that is easily accessed from inside the body since it's off the frame now.

Last edited by mffi115; Mar 30, 2011 at 08:47 AM. Reason: update/spelling
Reply
Old Mar 30, 2011 | 10:07 PM
  #16  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Originally Posted by 72LS1Vette
I'm using the Hooker shorty LS1 headers. Probably not the best thing for ultimate performance but they at least dump into a 2.5" pipe.

A lot of us just use a 90-degree bend off of the throttle body with the MAf connected to that and an air filter. Again this is not the ideal setup, but you will have to design somethimg custom to duct cold air into the engine. I have the stock small-block radiator housing in my 72 so there is a plate on the passenger side. I may cut a hole in it an route piping down to the bottom of the radiator to get some cool air into the engine.



Rick B.
Hey Rick,

I'll probably have a guy do a custom headers here. I don't know if it would be better to order one from a reputable vendor or just go with the custom one, for now to be honest I just want something to get the car moving and will probably look into better options later.
Reply
Old Mar 30, 2011 | 10:08 PM
  #17  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Originally Posted by Evil Empire
Jealous!!! a month and a half for a LS swap thats awesome. I bought my LS last summer and still havent finished building the engine. Hopefully I get the heads on next week and finish the wiring. Fingers crossed I get it driving this summer.
Haha, man the one and a half months is almost forever! you are working on it yourself (lucky you) I wish I knew how to rebuild an engine, and am paying hell a lot more than u I think :P

I hope you get it done ASAP.
Reply

Get notified of new replies

To 1976 Stingray LS1 Conversion Started

Old Mar 30, 2011 | 10:12 PM
  #18  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Originally Posted by mffi115
The mechanic says he needs a C4 corvette driveshaft to start working. (any idea why?)

Unless for some reason it's a direct bolt in, no idea. If I'm correct, you need to cut the front u-joint and the part that attaches to the tranny tail shaft (senior moment - can't remember the name) off the donor drive shaft and weld it to your C3 drive shaft. The C3 driveshaft will need to be shortened - not sure because I'm running a TKO 500 that came with a custom driveshaft.

Can't think of any parts I need now, but thanks for the offer. Oh, unless there's a real cheap LS7 laying around there.

Did you check my project out? http://LS273Stingray.blogspot.com I need to update the blog since I took a break during the winter. I don't have a heated garage and my wife needed "her" side of the garage to park in during the heavy snows. I'm doing some fiberglass repair work that is easily accessed from inside the body since it's off the frame now.
I actually found a C4 Shaft at the junkyard, bought it for $20. it looks in a great shape.
The mechanic said there will be no cutting at all, the C4 driveshaft is 4cm (centimeters) shorter than the C3 one, so he will just use it instead of the one on my car. So basically no cutting whatsoever (based on the mechanic's words)

an LS7 would be lovely. I'll keep an eye out :P however, LS3's and LS7's are still expensive. Found an LS3 the other day for $3000 fully working with Harness.

Yeah, I checked your blog, if you got any updates show some photos. I'll post some more photos soon.
Reply
Old Apr 2, 2011 | 10:28 AM
  #19  
Q8C6Vette's Avatar
Q8C6Vette
Thread Starter
Advanced
 
Joined: Jul 2007
Posts: 55
Likes: 0
Default

Hello people,

I went to check with the mechanic today, he said everything on gauges will be working except speedometer since it works mechanically. He has no idea how to get it working.

Any tips guys? I read a bit about x-cable, but don't know if that's the ideal solution.

I was thinking to swap in a C5 or C6 gauges. I understand I need to make a custom dashboard for this to work. Is this viable? Anyone tried this before?
Reply
Old Apr 5, 2011 | 12:17 AM
  #20  
MN-Brent's Avatar
MN-Brent
Le Mans Master
Veteran: Navy
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2001
Posts: 5,000
Likes: 1
From: Minneapolis, Mn USA
Default

Originally Posted by Q8C6Vette
Hello people,

I went to check with the mechanic today, he said everything on gauges will be working except speedometer since it works mechanically. He has no idea how to get it working.

Any tips guys? I read a bit about x-cable, but don't know if that's the ideal solution.

I was thinking to swap in a C5 or C6 gauges. I understand I need to make a custom dashboard for this to work. Is this viable? Anyone tried this before?
Check my thread on the LS1-4L60E swap and you will see the 4L60E tailshaft conversion that allows both VSS output and mechanical speedo output cable. The kit costs $500 approx and bolts up to fix your issue. Its works beautifully!
Reply



All times are GMT -4. The time now is 03:49 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE