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

1968 327 replacement & removal

Thread Tools
 
Search this Thread
 
Old Dec 19, 2010 | 10:36 AM
  #1  
cruisin68's Avatar
cruisin68
Thread Starter
Intermediate
 
Joined: Apr 2008
Posts: 28
Likes: 0
Default 1968 327 replacement & removal

I just finished rebuilding a replacement 327 for my 68 and was hoping to leave the manual transmission in the car and pulling the bad 350 out. Is there a reason you would not want to separate the transmission? Or if I can separate the tranny, do I leave the bell housing on ?

Thanks
Reply
Old Dec 19, 2010 | 11:12 AM
  #2  
SanDiegoPaul's Avatar
SanDiegoPaul
Race Director
Supporting Lifetime
 
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
Default

Pull it all as a single unit.
Reply
Old Dec 19, 2010 | 01:24 PM
  #3  
cm2dinger's Avatar
cm2dinger
Racer
 
Joined: Sep 2010
Posts: 430
Likes: 0
From: SIGONELLA Sicily
Default

You can leave the trany in with the bellhouseing on just support it with a jack or some blocks of wood.
Reply
Old Dec 19, 2010 | 01:50 PM
  #4  
midyearvette's Avatar
midyearvette
Le Mans Master
Supporting Lifetime Gold
 
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
Default

Originally Posted by cruisin68
I just finished rebuilding a replacement 327 for my 68 and was hoping to leave the manual transmission in the car and pulling the bad 350 out. Is there a reason you would not want to separate the transmission? Or if I can separate the tranny, do I leave the bell housing on ?

Thanks
i pull them like that all the time
just remove the 4 trans. bolts and yank it

use a floor jack under the trans. for installation
Reply
Old Dec 19, 2010 | 04:30 PM
  #5  
cruisin68's Avatar
cruisin68
Thread Starter
Intermediate
 
Joined: Apr 2008
Posts: 28
Likes: 0
Default

Originally Posted by cm2dinger
You can leave the trany in with the bellhouseing on just support it with a jack or some blocks of wood.
Do you mean leave the bell housing on the tranny or block? Another thing I just noticed is I can not get the hoist over the engine front of the car. I assume I will have to come at from the side and remove a wheel, is there a better side to come at it (Passenger or Driver)?
Reply
Old Dec 19, 2010 | 04:51 PM
  #6  
jackson's Avatar
jackson
Le Mans Master
 
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Default

Originally Posted by midyearvette
i pull them like that all the time
just remove the 4 trans. bolts and yank it

use a floor jack under the trans. for installation
ditto

Originally Posted by cruisin68
Do you mean leave the bell housing on the tranny or block? Another thing I just noticed is I can not get the hoist over the engine front of the car. I assume I will have to come at from the side and remove a wheel, is there a better side to come at it (Passenger or Driver)?
BH stays on motor ... 4 big bolts hold trans "ears" to BH.

If you have typical cherrypicker hoist ... it'll have to be sideways, don't think it matters drive or pass side. First, I put C3 on 6 jackstands.

suggest go ahead & pull old distributor out BEFORE you pull old motor ... & install new motor in BEFORE it gets a dist. Especially if you do this without a helper.

Last edited by jackson; Dec 19, 2010 at 04:56 PM.
Reply
Old Dec 19, 2010 | 05:06 PM
  #7  
cm2dinger's Avatar
cm2dinger
Racer
 
Joined: Sep 2010
Posts: 430
Likes: 0
From: SIGONELLA Sicily
Default

leave the bellhouseing on the tranny you'll be good to go
Reply
Old Dec 19, 2010 | 07:35 PM
  #8  
Faster Rat's Avatar
Faster Rat
Melting Slicks
 
Joined: May 2009
Posts: 3,079
Likes: 315
2024 C3 of the Year Finalist - Unmodified
Default

You need to pull the manual tranny back from the bellhousing in order to disengage the input shaft from the clutch/TOB. In order to do that, you need to take out the shifter, mounting bracket and driveshaft. All that is left to do is rotate the tranny 90 degrees and pull it out of the hole. Why not just pull the engine/tranny as a unit? Pull the engine from either side and use an engine leveler. You should really pull the radiator/shroud/core support as a package first.





With the new engine, you will need to mount the clutch and bellhousing. Are you buying a new clutch? Has the flyweel on the rebuilt engine been resurfaced? You really should check the center of the bellhousing on the rebuilt engine with a dial indicator. Offset pins are available if any adjustments are required. It is much easier to insert the tranny into the clutch/TOB and torque to the bellhousing when they are all out of the car.





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 Dec 20, 2010 | 11:59 AM
  #9  
cruisin68's Avatar
cruisin68
Thread Starter
Intermediate
 
Joined: Apr 2008
Posts: 28
Likes: 0
Default

[QUOTE=Faster Rat;1576264119]You need to pull the manual tranny back from the bellhousing in order to disengage the input shaft from the clutch/TOB. In order to do that, you need to take out the shifter, mounting bracket and driveshaft. All that is left to do is rotate the tranny 90 degrees and pull it out of the hole. Why not just pull the engine/tranny as a unit? Pull the engine from either side and use an engine leveler. You should really pull the radiator/shroud/core support as a package fir


With the new engine, you will need to mount the clutch and bellhousing. Are you buying a new clutch? Has the flyweel on the rebuilt engine been resurfaced? You really should check the center of the bellhousing on the rebuilt engine with a dial indicator. Offset pins are available if any adjustments are required. It is much easier to insert the tranny into the clutch/TOB and torque to the bellhousing when they are all out of the car.


New flywheel, pretty much everything is new from summit racing. Clutch on the current engine only has about 200 miles before the headgasket and rings went. Was thinking of reusing unless someone has reason I should not.

Sounds like either way I have to disconnect everything from tranny anyways so might as well pull it all.

Thanks for all the detailed pictures here. You mentioned and engine leveler...don't believe I have one of those. How would I use it and when?

I have a helper, but is clueless to what I am attempting to do, so should be interesting.

Thanks
Reply
Old Dec 20, 2010 | 01:28 PM
  #10  
Faster Rat's Avatar
Faster Rat
Melting Slicks
 
Joined: May 2009
Posts: 3,079
Likes: 315
2024 C3 of the Year Finalist - Unmodified
Default

[QUOTE=cruisin68;1576269271You mentioned and engine leveler...don't believe I have one of those. How would I use it and when?[/QUOTE]

You can see it in the picture. Turning the threaded rod changes the incline of the engine when coming out and going back in. Just makes the job easier and lessens the chance of damaging anything. Really helps when you only have an extra set of hands.
Reply
Old Dec 20, 2010 | 06:46 PM
  #11  
cruisin68's Avatar
cruisin68
Thread Starter
Intermediate
 
Joined: Apr 2008
Posts: 28
Likes: 0
Default

Originally Posted by Faster Rat
You can see it in the picture. Turning the threaded rod changes the incline of the engine when coming out and going back in. Just makes the job easier and lessens the chance of damaging anything. Really helps when you only have an extra set of hands.
Got it.....Thanks...now back to work
Reply
Old Dec 22, 2010 | 12:27 PM
  #12  
cruisin68's Avatar
cruisin68
Thread Starter
Intermediate
 
Joined: Apr 2008
Posts: 28
Likes: 0
Default

Originally Posted by Faster Rat
You can see it in the picture. Turning the threaded rod changes the incline of the engine when coming out and going back in. Just makes the job easier and lessens the chance of damaging anything. Really helps when you only have an extra set of hands.
Any ideas in what brand of engine levelers? I see a lot from $25-80... and have now heard some horror stories about the cheap ones breaking after a couple of uses and damaging the car with dropped engines.
Reply

Get notified of new replies

To 1968 327 replacement & removal





All times are GMT -4. The time now is 05:48 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 11:09:53


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