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

1973 Corvette Firewall wire routing

Thread Tools
 
Search this Thread
 
Old Mar 20, 2025 | 03:42 PM
  #1  
ld711's Avatar
ld711
Thread Starter
Heel & Toe
Supporting Lifetime Gold
20 Year Member
All Eyes On Me
 
Joined: Oct 2003
Posts: 21
Likes: 0
From: Newtown Square PA
Default 1973 Corvette Firewall wire routing

I am in the process of rewiring my 1973 Stock SBC 4 Speed. I am upgrading the engine to a Real Street 427 SBC from Scott Shafirioff, powermaster starter, MSD 6AL, MSD tach drive distributer, 1 78" ARH from Sal, a APT 4 speed Tremec TKX from Russ, Vintage Air to a non air car, MAM Electric window conversion, HydraBoost from JIm @ Hydratech, Electric Headlight door actuator conversion & a DeWitts radiator with a brushless fan. A mouthful to say the least. I had purchased all new Lectric limited stock wiring harnesses prior to deciding to upgrade of these worn out parts. I suffered a medical setback and decided if not now when? The car is part of my family and my daughter told me to never sell it so here I am. Just finished dialing in my McLeod RST race balanced clutch assy, QuickTime bell housing to the new motor. Perfecto!! As you can see from the parts list, I try to purchase the parts recommend by many forum members. I picked Scotts boys to build the engine as they were recommend to me from a buddy. After talking to Vinny, I knew I was in good hands.

SO, I am now looking to integrate all of these components into the electrical system. Of course this ground has been plowed but many however I am a bit of neat freak when it comes to wiring. I purchased all new "0" Gauge Battery wires. I installed new thicker grounding straps. I upgraded my wire from the starter to the alternator to 6 gauge. I would like to purchase the Holley mid mount serpentine belt system however the one wire alternator has given me pause. Most of you are against for the way the operate. What I really asking for is advise to integrating all of these components is a neat, safe and maintainable manner. I have searched hi and low for pictures on the web and there are a lot of cars out there with Rube Goldberg wiring and they will soon catch on fire. I don't post much on this site but I have been a Vette owner on and off for 48 years. This car has been with me since 1987 and I drove it every day till the clock hit about 180K Miles. Always started when I needed it to. I am retired and have time to do this right. I have been member of the forum for a long time and start here when I need to learn something. I learned from Lars many years ago about how to use a vacuum gauge to set timing and many other of his recommendations. I have darn near every manual written for the C3. So if you are inclined to guide me, I will listen. I did purchase a 6 relay bank from Daiertek for future use. I have all the weather tight connectors, wiring and the proper tools to do this right. I just need some picture and advise on how to best proceed. The engine is still out, the firewall and engine bay is restored and painted. The wiring harnesses are installed and have been modified to removed any wires not needed, (old heater system, TCS, etc.) Thanks for listening my fellow Vette Loyalists. V/r, Len
Reply
Old Mar 27, 2025 | 11:02 AM
  #2  
ld711's Avatar
ld711
Thread Starter
Heel & Toe
Supporting Lifetime Gold
20 Year Member
All Eyes On Me
 
Joined: Oct 2003
Posts: 21
Likes: 0
From: Newtown Square PA
Default

Fellow Vette Lovers, any ideas on how to best integrate all of these components from a wiring perspective?
Reply




All times are GMT -4. The time now is 06:16 PM.

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