300 I-6 Rocker Studs - Ford Truck Enthusiasts Forums



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, 02:09 PM
F-4 GUY F-4 GUY is offline
New User
Thread Starter
 
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, 09:30 PM
mikeo0o0o0's Avatar
mikeo0o0o0 mikeo0o0o0 is offline
Post Fiend
 
Join Date: Apr 2009
Location: Davenport, Fl
Posts: 12,715
mikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud of
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, 06:27 PM
F-4 GUY F-4 GUY is offline
New User
Thread Starter
 
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, 08:36 PM
F-4 GUY F-4 GUY is offline
New User
Thread Starter
 
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, 08:51 PM
mikeo0o0o0's Avatar
mikeo0o0o0 mikeo0o0o0 is offline
Post Fiend
 
Join Date: Apr 2009
Location: Davenport, Fl
Posts: 12,715
mikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud ofmikeo0o0o0 has much to be proud of
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
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1977 F250 400 ci C6 auto - starter Papa Tango 1973 - 1979 F-100 & Larger F-Series Trucks 1 06-06-2015 05:16 PM
Pulled push rod 82fordowner 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 1 03-21-2015 11:27 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 09:11 AM
Screw in Rocker Arm Studs coolguy1419 Ford Inline Six, 200, 250, 4.9L / 300 4 05-11-2010 07:37 PM
351w heads with 3/8 screw in studs nhawki00 Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) 1 06-11-2004 10:47 PM


Go Back   Ford Truck Enthusiasts Forums >

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 04:04 AM.


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. FordŽ is a registered trademark of the Ford Motor Company.