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

c4 engine and 6 speed

Thread Tools
 
Search this Thread
 
Old Jun 22, 2010 | 05:10 PM
  #1  
turbovette80's Avatar
turbovette80
Thread Starter
Instructor
 
Joined: Apr 2006
Posts: 110
Likes: 0
From: wakefield uk
Default c4 engine and 6 speed

1990 engine and box ,how difficult into a 1980 c3?

Last edited by turbovette80; Jun 22, 2010 at 05:12 PM.
Reply
Old Jun 22, 2010 | 05:44 PM
  #2  
mrvette's Avatar
mrvette
Team Owner
Active Streak: 120 Days
Liked
Loved
Community Favorite
 
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Default

Engine is a bolt in, serp drive and all, trick is you will need electric fans so junk the shroud and maybe the radiator for aluminum....

tranny, maybe need to shorten the drive shaft...I dunno, I do know you need to that for a 700 tranny, but not sure about stick shifts...

probable have a shifter location issue, maybe change to hydraulic clutch m/cyl??

obviously a fuel pump....frame rail mounted worked fine under my '72 tank....

you maybe need to do aftermarket cal pak, and there is the obvious air cleaner/induction off the t-body....

I did one some 15 years ago, many changes over that time frame, but it's still a daily driver....

PM/email if you wish for more information....I have most documentation...

Reply
Old Jun 22, 2010 | 06:29 PM
  #3  
Attfay Elleybay's Avatar
Attfay Elleybay
Burning Brakes
 
Joined: Jul 2006
Posts: 1,108
Likes: 0
From: Sebastian Florida
Default

I think for the 6-speed you need to mod the tranny tunnel.(that sounds a little perverted)
Reply
Old Jun 22, 2010 | 08:04 PM
  #4  
vette427-sbc's Avatar
vette427-sbc
Burning Brakes
10 Year Member
 
Joined: Oct 2008
Posts: 955
Likes: 50
From: Jersey Shore
Default


The ZF6 is a huge trans... wont fit without mods to the tunnel. LT1/LT4 F-bodies used T56's that should bolt up pretty easy.
Reply
Old Jun 22, 2010 | 11:10 PM
  #5  
ZBRA's Avatar
ZBRA
Le Mans Master
Supporting Lifetime Gold
25 Year Member
Photogenic
Liked
Loved
 
Joined: Mar 2000
Posts: 8,950
Likes: 4
From: Lafayette LA
Default

Originally Posted by vette427-sbc

The ZF6 is a huge trans... wont fit without mods to the tunnel. LT1/LT4 F-bodies used T56's that should bolt up pretty easy.


The C4 Corvette 6-speed (ZF6) is too big. To fit it in a C3, you will need to cut out much of your tunnel.

Instead, use a 6-speed from a 1993-1997 LT1 Camaro or Firebird (T56). Much easier swap.
Reply

Get notified of new replies

To c4 engine and 6 speed





All times are GMT -4. The time now is 08:37 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
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-7
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-8
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-9
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