What flexplate for 5.0 & older C-4? - Ford Muscle Forums : Ford Muscle Cars Tech Forum
FordMuscleForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 12-16-2008, 08:36 AM   #1 (permalink)
Tech Contributor
 
Join Date: Jan 2002
Location: Ontario,Canada
Posts: 6,381
Garage
What flexplate for 5.0 & older C-4?

I have a 69 C-4 that I want to mate to a newer 5.0..What flexplate do I need that is the correct 50oz balance for the motor and will still mate up to the older C-4 and convertor?
__________________

1968 mustang 408W Hybrid..Burns gas and rubber!
11.59@120.95 with 1.68 60ft
frdnut is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-16-2008, 02:53 PM   #2 (permalink)
Registered User
 
Join Date: Nov 2007
Posts: 34
Re: What flexplate for 5.0 & older C-4?

I actually logged on to ask this very same question - except that my C4 is a '65. I don't think that there's any difference. I've got a couple 5.0L AOD flywheels that are the right 50 oz imbalance, but I don't know if they will fit a C4. I'm thinking not. I can't think of any stock applications that would have mated a 5.0L to a C4. The only options may be a new aftermarket flexplate or having the one off the old 289 rebalanced. I know I'm not much help, but I'm anxiously awaiting any responses that you get.

Last edited by 1herrick1; 12-16-2008 at 02:55 PM.
1herrick1 is offline   Reply With Quote Quick reply to this message
Old 12-16-2008, 03:50 PM   #3 (permalink)
Registered User
 
Join Date: Jan 2008
Posts: 16
Re: What flexplate for 5.0 & older C-4?

I have an '89 5.0 mated to a '66 C4 in my Falcon, and I used a B&M 157 tooth flexplate with 50 ounce imbalance.
Chas is offline   Reply With Quote Quick reply to this message
Old 12-17-2008, 10:17 AM   #4 (permalink)
Registered User
 
Join Date: Aug 2006
Location: Greater Puget Sound Area
Posts: 4,003
Re: What flexplate for 5.0 & older C-4?

Summit, Broader Performance and other places sell the 50 oz small (157 tooth) flexplate.
__________________
66 Mustang Coupe. 365hp, 4spd Toploader, sub-frame connectors
Shelby drop, suspension tuned for slalom and hill climb
body mods and weight reduced to 2000lbs; name: Muskrat
PaulS1950 is offline   Reply With Quote Quick reply to this message
Old 12-17-2008, 10:19 AM   #5 (permalink)
Tech Contributor
 
Join Date: Jan 2002
Location: Ontario,Canada
Posts: 6,381
Garage
Re: What flexplate for 5.0 & older C-4?

Thanks for the info guys..I was curious if there was a factory piece that would work but it looks like it's going to be aftermarket..
__________________

1968 mustang 408W Hybrid..Burns gas and rubber!
11.59@120.95 with 1.68 60ft
frdnut is offline   Reply With Quote Quick reply to this message
Old 12-18-2008, 08:31 PM   #6 (permalink)
Subscriber
 
Join Date: Sep 2002
Location: Marysville, WA
Posts: 522
Re: What flexplate for 5.0 & older C-4?

Yes, you need a flexplate that matches the balance that you have now, IE: 28 or 50 oz. But don't forget your converter bolt pattern. There are two different patterns. One is 10.5 inches and the other is 11.5 inches. I am running a 74 block and am using a 164 tooth 11.5, 28 oz flexplate. I am upgrading to a '87 347 stroker and I have to get a 50 oz 11.5 164 tooth flexplate. You need to get the same flexplate you have now only match it to the same balance that is in your new engine.
__________________
347/c4 4.30 gear 11.07@119mph
ponyexpress is offline   Reply With Quote Quick reply to this message
Old 12-18-2008, 08:43 PM   #7 (permalink)
Registered User
 
Join Date: Jun 2006
Posts: 991
Re: What flexplate for 5.0 & older C-4?

Quote:
Originally Posted by ponyexpress View Post
I am upgrading to a '87 347 stroker and I have to get a 50 oz 11.5 164 tooth flexplate.
50oz 347, thats never a good thing.
__________________
FordStrokers.com : Owner
SBFTech.com : Owner
Quickly Becoming The Largest CHP/Probe Dealer
woody1 is offline   Reply With Quote Quick reply to this message
Old 12-18-2008, 11:26 PM   #8 (permalink)
Senior Member
 
Join Date: Aug 2001
Posts: 1,413
Re: What flexplate for 5.0 & older C-4?

i just replaced my c4 10.5 50 oz sfi spec for a flywheel, so its is a very good piece name brand and for sale cheap. let me know i will sell it for 70 plus shipping. less than a year old. will send pics if needed...its a TCI a great part...has sfi stickers on it! and less than a year old! summit sells them too.

Last edited by 107485; 12-19-2008 at 09:01 AM.
107485 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Muscle Forums : Ford Muscle Cars Tech Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Older block and 5.0 cam V8RANGER Late Model EFI Techboard 4 09-04-2006 01:07 PM
think i should keep older canfields? tjcrawfo All Ford Techboard 4 07-07-2006 10:13 PM
Anybody modernize a older car? uriah The Garage 2 01-01-2005 05:33 PM
Getting Older! JohnnyRay The Garage 2 07-26-2004 04:10 AM
02 Sensor on older car? fnracing All Ford Techboard 3 07-18-2002 02:11 PM


All times are GMT -7. The time now is 06:32 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.