429 Crank Question - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > 429-460 Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-04-2010, 16:13   #1 (permalink)
Registered User
 
Join Date: Apr 2010
Posts: 5
confused 429 Crank Question

I have a 429 with a 4 UAB crank in it now the snout is bent 120 thns so i found a good crank from a 429 but it is a 4U Can someone tell me if this 4U crank will work for my crank that is a 4UAB Please help !
ol37ford is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-05-2010, 12:33   #2 (permalink)
429/460 Fanatic
 
Paul Kane's Avatar
 
Join Date: Sep 2004
Location: San Francisco Bay Area
Posts: 548
cool Re: 429 Crank Question

Quote:
Originally Posted by ol37ford View Post
I have a 429 with a 4 UAB crank in it now the snout is bent 120 thns so i found a good crank from a 429 but it is a 4U Can someone tell me if this 4U crank will work for my crank that is a 4UAB Please help !
If you are using an automatic transmission, then the torque converter pilot hole in the rear flange of the crankshaft might be a different diameter (very likely). If so, then you will need another 4UAB crankshaft.

If you are using a manual transmission then the crankshafts are interchangeable.

Paul
__________________

We're on the web; click below:
High Flow Dynamics
Performance Components for the 429/460 Engine Family
Paul Kane is offline   Reply With Quote
Old 05-06-2010, 04:46   #3 (permalink)
Registered User
 
Join Date: Apr 2010
Posts: 5
Re: 429 Crank Question

Ok Thanks ! Were could i find a stock replacement crankshaft ? So far I can only find the wrong ones ! Were could I look or call to maybe find a 4UAB ? Is it possible if I bought one and the pilot was the worng size could a good machine shop mill it open to the right size ? Dont know what else to do !
ol37ford is offline   Reply With Quote
Old 05-06-2010, 09:00   #4 (permalink)
429/460 Fanatic
 
Paul Kane's Avatar
 
Join Date: Sep 2004
Location: San Francisco Bay Area
Posts: 548
cool Re: 429 Crank Question

Quote:
Originally Posted by ol37ford View Post
Ok Thanks ! Were could i find a stock replacement crankshaft ? So far I can only find the wrong ones ! Were could I look or call to maybe find a 4UAB ? Is it possible if I bought one and the pilot was the worng size could a good machine shop mill it open to the right size ? Dont know what else to do !
I am not 100% positive about the following info, but I think the breakdown is as follows:
  • The 4U & 4UA crankshafts have a 1.85" converter pilot hole in the rear flange
  • The 4UAB crankshaft has a 1.375" pilot in the rear flange.
If the above is correct (and I'm fairly sure it is but I'm not positive), then the 4U and 4UA cran pilots may be bushd down to a 1.375" pilot. Yes, a machine shop could do this for you. Measure the rear pilot diameter of your 4U crank to confirm it is 1.85", but don't press in the bushing until you also look at your 4UAB crankshaft for comparison/verification.

Paul

P.s.: We may have a 4UAB crankshaft over here if you need one....
__________________

We're on the web; click below:
High Flow Dynamics
Performance Components for the 429/460 Engine Family
Paul Kane is offline   Reply With Quote
Old 05-06-2010, 14:45   #5 (permalink)
Registered User
 
Join Date: Apr 2010
Posts: 5
Re: 429 Crank Question

Thanks alot ! I may take you up on that if you have one and if this going to be to much hassle ! Again thanks alot !
ol37ford is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > 429-460 Tech



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

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 20:46.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.