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

This is probably a stupid question.

Thread Tools
 
Search this Thread
 
Old Nov 9, 2017 | 01:34 PM
  #1  
jhopper408's Avatar
jhopper408
Thread Starter
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2013
Posts: 1,072
Likes: 61
From: Saint clair shores Michigan
Default This is probably a stupid question.

Would a C7 8 speed auto trans fit in a C3?
Reply
Old Nov 9, 2017 | 01:45 PM
  #2  
Dynra Rockets's Avatar
Dynra Rockets
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2012
Posts: 1,152
Likes: 252
Default

not as a bolt in.
Reply
Old Nov 9, 2017 | 01:55 PM
  #3  
jhopper408's Avatar
jhopper408
Thread Starter
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2013
Posts: 1,072
Likes: 61
From: Saint clair shores Michigan
Default

So realistically it won't work?
Reply
Old Nov 9, 2017 | 01:58 PM
  #4  
Dynra Rockets's Avatar
Dynra Rockets
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2012
Posts: 1,152
Likes: 252
Default

Originally Posted by jhopper408
So realistically it won't work?
Not as a bolt in. Depends on how good you are with a welder, sawsall and wiring in the computer to control it.
Reply
Old Nov 9, 2017 | 01:59 PM
  #5  
Knerf's Avatar
Knerf
Instructor
 
Joined: Feb 2016
Posts: 215
Likes: 26
From: Bismarck North Dakota
Default

there is a fella on here that put a bmw v12 in a c3, im sure given enough time and effort you could get what you want working.
Reply
Old Nov 9, 2017 | 02:06 PM
  #6  
C6_Racer_X's Avatar
C6_Racer_X
Safety Car
 
Joined: Jun 2017
Posts: 4,786
Likes: 425
From: North Georgia, USA
Default

The short answer is "NO!"

The longer answer is, given enough time, money and skill, anything is possible. But the cost would far exceed the cost of buying a brand new (or drivable, used, low mileage used) C7 and driving that.

You'd have to fabricate a rear frame section and rear suspension that matches the C7, and graft that onto the C3 frame. You'd also have to install a modern LS-x engine with electronic throttle (DBW throttle) to work with the A8 automatic. The A8 automatic transmission was only used with DBW throttle configurations, and the transmission requires that feature to operate correctly.
Reply
Old Nov 9, 2017 | 02:12 PM
  #7  
jhopper408's Avatar
jhopper408
Thread Starter
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2013
Posts: 1,072
Likes: 61
From: Saint clair shores Michigan
Default

Lol. It was a dream. I've got a 383 stroker. I've got a 350 trans, and its built with heavy duty cluches. And a shift kit, and a 3500 stall converter. Maybe I don't even need it. I was just thinking about getting the rpms down. 3000 rpms @70 mph. Whoosh. 6 miles to the gallon.
Reply
Old Nov 9, 2017 | 02:16 PM
  #8  
Dynra Rockets's Avatar
Dynra Rockets
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2012
Posts: 1,152
Likes: 252
Default

an 80's 4speed auto will do that. Bolts in. Search 700R4, 4L60, 4L65, 4L80

R

Last edited by Dynra Rockets; Nov 9, 2017 at 02:19 PM.
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 Nov 9, 2017 | 02:28 PM
  #9  
jhopper408's Avatar
jhopper408
Thread Starter
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2013
Posts: 1,072
Likes: 61
From: Saint clair shores Michigan
Default

Yeah might as well buy a C7.
Reply
Old Nov 9, 2017 | 02:53 PM
  #10  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

Well, you'd want the version of an 8-speed that was mounted behind the engine with a driveshaft, not at the end of torque tube with the differential directly mounted. So, truck one or maybe from a Camaro.

A controller for stand-alone use still seems to be an issue. A 6-speed would be much easier. Others have already done it. Apparently, it works very well. Much better than 4-speed auto swaps.
Reply

Get notified of new replies

To This is probably a stupid question.





All times are GMT -4. The time now is 06:46 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