The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-19-2021, 10:54 AM   #1
64stpside
Registered User
 
Join Date: Aug 2015
Location: old hickory, tn
Posts: 151
Need help with vortec 350 manual trans swap

Morning fellas,
Finishing up my L31 vortec 350 build for my 64 step side and trying to figure the flywheel, clutch and starter situation.

Here's what in the truck now:

-1977 305 (lol...i know...hence the engine swap)
-factory 1964 bell housing and mechanical clutch linkage
-1992 world class S10 speed conversion

I know I have to drill and tap the vortec block for the z-bar ball stud ( i had to do it on the 305 that's in it now)

I know I need the vortec flywheel due to the 1 piece rear main seal.

My questions are:

1. Because there's very low mileage on the clutch that's in the truck now, can I use that clutch on the vortec flywheel?
The reason I ask is that the clutch for the vortec flywheel is 12 in and the clutch in the truck now is 11in.
I'm pretty sure the mounting is the same for a 10.5 and 11 is the same, is it the same for a 11 and 12 in clutch?
Will they interchange or do I need the vortec clutch?

Here a link to the vortec flywheel:
https://www.rockauto.com/en/moreinfo...1086&jsn=11086

Link to the vortec clutch:
https://www.rockauto.com/en/moreinfo...jsn=__GIP__4__

Link to the flywheel I have in it now:
https://www.rockauto.com/en/moreinfo...=8&jsn=8&jsn=8

Link to the clutch kit in it now:
https://www.rockauto.com/en/moreinfo...jsn=__GIP__4__


2. Because both the flywheel in the truck now and vortec flywheel are 168 tooth and have a 14 in outer diameter, I can I use the same starter, correct?

3. Because the pilot bearing in the truck now and the vortec one have a .59 inner diameter, there shouldn't be any issues?
64stpside is offline   Reply With Quote
Old 04-19-2021, 08:42 PM   #2
PGSigns
Senior Member
 
PGSigns's Avatar
 
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
Re: Need help with vortec 350 manual trans swap

Till you put your hands on the fly wheel and see what its actually drilled for I would say maybe on the clutch. Rest of you plan looks fine. The starter will work if the flywheels are both 168.
Jimmy
__________________
60 to 66 Chevy and GMC window decals
http://67-72chevytrucks.com/vboard/s...d.php?t=661131
Good friends, good food and a hotrod what else do you need?
1966 BBW long fleet Daily driver
1965 BBW short fleet Sold and going to a good home
1965 Suburban
2003 3500 Duramax
2005 Ultra Classic
PGSigns is offline   Reply With Quote
Old 04-21-2021, 09:04 AM   #3
64stpside
Registered User
 
Join Date: Aug 2015
Location: old hickory, tn
Posts: 151
Re: Need help with vortec 350 manual trans swap

Quote:
Originally Posted by PGSigns View Post
Till you put your hands on the fly wheel and see what its actually drilled for I would say maybe on the clutch. Rest of you plan looks fine. The starter will work if the flywheels are both 168.
Jimmy
Thanks Jimmy
64stpside is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:39 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com