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

12.3 holley efi guage into a 81 c3

Thread Tools
 
Search this Thread
 
Old Yesterday | 09:26 AM
  #1  
CalmFX's Avatar
CalmFX
Thread Starter
5th Gear
 
Joined: Apr 2026
Posts: 5
Likes: 0
Default 12.3 holley efi guage into a 81 c3

How to wedge a 12.3 guage into an 11.0 opening 🤔
I know, it doesn't fit, but it's got to!
Just put a LS 5.7 with a Holley Termination X Max in installed. I looked at Dakota Digital, but I just don't like the look....so, any ideas on how to build a dash that will take the guage?
Thanks for all your help and ideas!
Reply
Old Yesterday | 07:52 PM
  #2  
RocketJSquirrel's Avatar
RocketJSquirrel
Instructor
Liked
Loved
Top Answer: 1
Top Answer: 3
 
Joined: Nov 2023
Posts: 131
Likes: 172
2026 Corvette of the Year Finalist - Modified
2025 Restomod of the Year
Default

It is possible with some tricks. Let me go through my archive and see if I can put together a story. Basically you need to fabricate a custom bezel, put some 1/2" spacers under the column mount and use a tilt column at full rise to compensate for the lowered column.


Reply
Old Yesterday | 08:29 PM
  #3  
CalmFX's Avatar
CalmFX
Thread Starter
5th Gear
 
Joined: Apr 2026
Posts: 5
Likes: 0
Default

That looks perfect! That whole setup with the double din raido is exactly what I am looking to do!
that just gets me excited 😊
Thanks!
Reply
Old Yesterday | 08:31 PM
  #4  
RocketJSquirrel's Avatar
RocketJSquirrel
Instructor
Liked
Loved
Top Answer: 1
Top Answer: 3
 
Joined: Nov 2023
Posts: 131
Likes: 172
2026 Corvette of the Year Finalist - Modified
2025 Restomod of the Year
Default

Custom bezel







CUTTING COLUMN SHEATH TO PROVIDE MORE ROOM FOR DISPLAY
Cut column sheath to provide space for display
Cut column sheath to provide space for display
Reply

Get notified of new replies

To 12.3 holley efi guage into a 81 c3





All times are GMT -4. The time now is 02:08 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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