C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

just got my first c4

Thread Tools
 
Search this Thread
 
Old Oct 15, 2011 | 09:55 PM
  #1  
72 bucket of parts's Avatar
72 bucket of parts
Thread Starter
Instructor
 
Joined: Dec 2009
Posts: 112
Likes: 0
From: LaVista Ne
Default just got my first c4

I have been interested in c3 for ever, but I just got my first c4. It had a fire under the hood, looks like it was on the right side. From what I understand this is not rare. So anyway I am looking at either repairing it and selling it, or parting it out. It looks like it would not be to bad to fix, but I was thinking that the wiring was all plugs under the hood. It looks like the one in the middle is not and the options appear to be replace the whole harness, which I don't know where it goes, or splice it at the firewall. Any thoughts?

Kelley
Reply
Old Oct 15, 2011 | 10:07 PM
  #2  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Default

Pics and year of the car would help.
Reply
Old Oct 15, 2011 | 10:28 PM
  #3  
Cliff Harris's Avatar
Cliff Harris
Race Director
15 Year Member
 
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Default

The harness on the "right" side (I assume you mean the passenger side) goes into the cockpit through a gasketed feedthrough above and behind the starter. It is NOT a connector. It mainly goes to the ECM.

There are no new harnesses left. Your options are to buy a used one or get one from one of the aftermarket harness manufacturers or splice a lot of wires. If you decide to splice you need to make sure you use automotive grade wires.
Reply
Old Oct 15, 2011 | 10:44 PM
  #4  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

less agravation to get rid of it
Reply
Old Oct 15, 2011 | 10:58 PM
  #5  
72 bucket of parts's Avatar
72 bucket of parts
Thread Starter
Instructor
 
Joined: Dec 2009
Posts: 112
Likes: 0
From: LaVista Ne
Default

Going to try and get pictures up, photobucket seems to be havng issues. Yes it would be less frustrating to get rid of it, but less fun. If I get a harness from another car and splice it with solder and shrink wrap will that be good? Oh, and it is an '87. Hope to get some pictures up tomorrow.

Kelley
Reply
Old Oct 15, 2011 | 11:09 PM
  #6  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

the harness and wires will be the least of your problems, hope you got it real cheap
Reply
Old Oct 15, 2011 | 11:13 PM
  #7  
72 bucket of parts's Avatar
72 bucket of parts
Thread Starter
Instructor
 
Joined: Dec 2009
Posts: 112
Likes: 0
From: LaVista Ne
Default

Yup, got it cheap, what do you think my real issues will be? Here are some pictures.







Reply
Old Oct 15, 2011 | 11:14 PM
  #8  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Default

Hopefully cheap as in FREE. It needs alot of work.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Oct 15, 2011 | 11:18 PM
  #9  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

I apoligize for how this is going to sound, but, if thats missing all those parts and you got it free, you're going to pay more than that ever will be worth.
Reply
Old Oct 15, 2011 | 11:22 PM
  #10  
bout-time's Avatar
bout-time
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2010
Posts: 233
Likes: 0
From: St Petersburg, FL
Default

Parting the rest of it out would probably be the best bet.

I helped a buddy rebuild a C4 from an engine many years ago. It was a huge project and the car was in better condition than the one you picked up.
Reply
Old Oct 16, 2011 | 12:42 AM
  #11  
Keystring's Avatar
Keystring
Drifting
 
Joined: Aug 2006
Posts: 1,624
Likes: 2
From: Canandaigua New York
Default

If the engine and tranny are still good, you'd be better off using them in something like this:

http://rochester.craigslist.org/cto/2585684156.html



$2000 and your engine and tranny would still be cheaper than what you would have to invest in the one you have.

If I had the money, I'd buy it myself.
Reply
Old Oct 16, 2011 | 01:54 AM
  #12  
87 vette 81 big girl's Avatar
87 vette 81 big girl
Melting Slicks
 
Joined: Nov 2008
Posts: 2,765
Likes: 5
Default

Its a base model C4 Coupe.
I can tell by the 8.5" X 16 inch rims up front.

The Z51 & Z52 cars have the 9.5" X 16 inch rims all around.

This car is not really putting back together stock in today's bad US economy.
You will lose your azz & lots of $$$.

BUT>>>>>>>>>this 87 coupe is perfect foundation for a Drag Race Car build on the cheep $$$.

Not is all lost.





Brian
Reply
Old Oct 16, 2011 | 08:11 AM
  #13  
72 bucket of parts's Avatar
72 bucket of parts
Thread Starter
Instructor
 
Joined: Dec 2009
Posts: 112
Likes: 0
From: LaVista Ne
Default

Help me out here guys. You keep saying it is a loss, why is that. This is what I see. The motor is going to need a rebuild. Not been inside to make sure it is rebuildable yet, but beileve it is. All the front suspension and glass needs replaced. A lot of work to be sure, but not unduable. I think I can get a front clip to the frame cheap with the glass, looking at that today, and if that is the case I can do the labor myself of course and have a rolling chassie needing a motor and that wireing issue for less than 1500. Then comes the motor. I think the big issue is all the hang on stuff. Air pump, power steering pump, and so on. that could get a little pricy, but some of that came with the car. I know I can part it out for more than I have in it right now. I am going to look a the front clip today, just wondering if parting would be the better option. I have access to parts for cheap because of people I know, not free mostly, but not real bad either. Thanks for the input, it if very welcomed. I am ussually messing with c3's and the c4's are a little new to me. Not sure of all the little stuff I don't know.

Kelley
Reply
Old Oct 16, 2011 | 09:01 AM
  #14  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

C3's are a lot less spendy for parts, simplier to work on , and worth a lot more when you are done, before you start spending money, check prices on parts
Reply
Old Oct 16, 2011 | 09:10 AM
  #15  
72 bucket of parts's Avatar
72 bucket of parts
Thread Starter
Instructor
 
Joined: Dec 2009
Posts: 112
Likes: 0
From: LaVista Ne
Default

Well, like I said, I can have everything except the motor and stuff that hangs on it for under 1500. Then I will need to rebuild the motor and stuff that hangs on it. I went and looked and see that I have a power stearing pump, ac compresor and water pump in the pile of stuff I got with it. so ac hoses power stearing hoses will be needed, stuff on the motor that didn't fare so well like the throttle body. I just can't believe there isn't money to be made on this if I can get the clip I am looking at. Alternators you can buy for what, maybe 30 or 40 bucks, if I can't find one laying around? One other big thing will be the cats. Someone cut them off after the fire. Theft I am sure.
Reply
Old Oct 16, 2011 | 09:12 AM
  #16  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

instead of arguing, check prices.
Reply
Old Oct 16, 2011 | 09:33 AM
  #17  
856SPEED's Avatar
856SPEED
Melting Slicks
10 Year Member
 
Joined: Apr 2007
Posts: 2,616
Likes: 111
Default



with the other posts here........I have an 85 that I bought as a project car back in 2001 (which was in very good condition then)......still have it and love it..........that is the difference here......I bought the car to upgrade performance parts and keep as my hot rod for a long time......I will never get out of it what I have in it and frankly don't care....I own a fun great looking car now for the weekends....


If your goal is to flip this thing after getting it in decent shape.....you have the wrong Corvette to play with here....the reason you got the car for nothing to start with.....
Reply

Get notified of new replies

To just got my first c4

Old Oct 16, 2011 | 09:41 AM
  #18  
856SPEED's Avatar
856SPEED
Melting Slicks
10 Year Member
 
Joined: Apr 2007
Posts: 2,616
Likes: 111
Default

Let me add to this.....

I do see this 87 is a manual shift car which makes me conclude it has the sought after Dana 44 differential.....If you want to unload that alone along with the batwings and driveshaft, let me know....

unfortunately with the value of these C4's, you might get more out of that than the whole thing as is..........
Reply
Old Oct 16, 2011 | 09:47 AM
  #19  
72 bucket of parts's Avatar
72 bucket of parts
Thread Starter
Instructor
 
Joined: Dec 2009
Posts: 112
Likes: 0
From: LaVista Ne
Default

It's not a stick, it's automatic.
Reply
Old Oct 16, 2011 | 11:09 AM
  #20  
HlhnEast's Avatar
HlhnEast
Safety Car
 
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
Default

Originally Posted by oldalaskaman
instead of arguing, check prices.
You need to understand this isnt a C3. Your alternator starts around $80 for a white box rebuilt and goes up quickly. Find another C4 and use one or the other to make one complete car if you just want a project. Yes it will be lots of fun but your gonna spend a ton of money unless folks are gonna pitch in and give you parts cheap as you mentioned.

Its not that we dont want you to do it, just realize its gonna cost more than you think.

Good luck with what your trying to do.
Reply



All times are GMT -4. The time now is 10:47 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
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-9
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