Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1973 - 1979 F-100 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck

300 I-6 Rocker Studs

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 03-09-2013, 01:09 PM
F-4 GUY F-4 GUY is offline
New User
 
Join Date: Feb 2006
Posts: 23
F-4 GUY is starting off with a positive reputation.
300 I-6 Rocker Studs

Hi, I am trying to find out when ford changed stud sizes on the 300 I-6. My 77 came with self locking nuts. I need a valve job and I picked up another head which has smaller non-locking nuts and jam nuts. I can't make out the code on the head and am trying to figure out when they changed so I know the year of the head. They both have adjustable rockers and hopefully will interchange. Thanks in advance.
Reply With Quote
  #2  
Old 03-09-2013, 08:30 PM
mikeo0o0o0's Avatar
mikeo0o0o0 mikeo0o0o0 is offline
Post Fiend
 
Join Date: Apr 2009
Location: Davenport, Fl
Posts: 10,470
mikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to behold
According to the Ford parts catalog 73-77 used studs with 3/8"-24 thread. In '78 they switched to the smaller 5/16"-24 thread.
Reply With Quote
  #3  
Old 03-10-2013, 05:27 PM
F-4 GUY F-4 GUY is offline
New User
 
Join Date: Feb 2006
Posts: 23
F-4 GUY is starting off with a positive reputation.
Thanks for the quick response. That helps alot.
Reply With Quote
  #4  
Old 03-11-2013, 07:36 PM
F-4 GUY F-4 GUY is offline
New User
 
Join Date: Feb 2006
Posts: 23
F-4 GUY is starting off with a positive reputation.
Quote:
Originally Posted by mikeo0o0o0 View Post
According to the Ford parts catalog 73-77 used studs with 3/8"-24 thread. In '78 they switched to the smaller 5/16"-24 thread.
Are the pushrods the same?
Reply With Quote
  #5  
Old 03-11-2013, 07:51 PM
mikeo0o0o0's Avatar
mikeo0o0o0 mikeo0o0o0 is offline
Post Fiend
 
Join Date: Apr 2009
Location: Davenport, Fl
Posts: 10,470
mikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to beholdmikeo0o0o0 is a splendid one to behold
Quote:
Originally Posted by F-4 GUY View Post
Are the pushrods the same?
Yup, the catalog shows same pushrods 73-79
Reply With Quote
Old 03-11-2013, 07:51 PM
 
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rocker Stud Sizes F-4 GUY Ford Inline Six, 200, 250, 4.9L / 300 1 03-06-2013 09:49 AM
Dealing with a worn rocker arm stud zerfetzen Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) 5 05-19-2012 08:11 AM
Dealing with a worn rocker arm stud - SOLVED zerfetzen 1973 - 1979 F-100 & Larger F-Series Trucks 5 05-18-2012 07:37 PM
429 rocker arm nuts and bent pushrods Shelby Sam Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460) 9 04-10-2004 01:10 PM
squeaking rocker arm posi lock nuts inliner Performance & General Engine Building 2 08-17-2003 02:56 PM


Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1973 - 1979 F-100 & Larger F-Series Trucks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »


All times are GMT -5. The time now is 07:17 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup