News: Putting FUN and FRIENDLINESS, FIRST into owning and learning about AMC small bodied cars, primarily Eagles, Spirits and Concords as well as vehicles built in AMC's Mexican subsidiary, VAM.

The AMC Eaglepedia can now be accessed using the buttons found below  This is a comprehensive ever growing archive of information, tips, diagrams, manuals, etc. for the AMC Eagle and other small bodied AMC cars. 

Also a button is now available for our Face Book Group page.


Welcome to the AMC Eagles Nest.  A new site under "old" management -- so welcome to your new home for everything related to AMC Eagles, Spirits and Concords along with opportunities to interact with other AMC'ers.  This site will soon be evolving to look different than it has and we will be incorporating new features we hope you will find useful, entertaining and expand your AMC horizons.

You can now promote your topics at your favorite social media site by clicking on the appropriate icon (top upper right of the page) while viewing the topic you wish to promote.


  • October 09, 2024, 10:15:52 AM

Login with username, password and session length

Author Topic: Head bolts for the 4.0  (Read 1445 times)

0 Members and 1 Guest are viewing this topic.

Offline maddog

  • a long haired redneck country boy
  • AMC Eagles Den Addicted
  • ********
  • Posts: 1827
  • Thumbs Up 50
  • AMC Eagle the original crossover
Head bolts for the 4.0
« on: June 20, 2023, 06:45:02 PM »
So I finally got my engine block and everything else back from the machine shop (they've only had it since September of 2020). I noticed one of the things I didn't get with it is head bolts, but I've also noticed that the ARP ones don't have the studs for the fuel rail or a few other things on top of the bolts. So I was wondering if anyone knows of a good source for head bolts that match the original ones but are stronger than the original ones, because the engine is being built as a stroker motor that's been bored 30 over.
1998 CHEVY S10 (DAILY DRIVER/PROJECT) INTIMIDATIN'
1980 AMC EAGLE WAGON (PROJECT) EAGLE EYES
http://forums.amceaglesden.com/index.php?topic=30758.0
1983 AMC EAGLE LIMITED WAGON-SURVIVOR (gone)
http://forums.amceaglesden.com/index.php?topic=32372.0

Offline rmick

  • Eagle Sport
  • ****
  • Posts: 392
  • Thumbs Up 42
Re: Head bolts for the 4.0
« Reply #1 on: June 20, 2023, 10:52:04 PM »
I used some felpro bolts  I baught at  auatozone on my stroker.
72 Javelin AMX
72 Javelin SST
72 Gremlin with 4.0
81 SX 4

Offline amcfool1

  • Eagle Limited
  • *****
  • Posts: 651
  • Thumbs Up 31
Re: Head bolts for the 4.0
« Reply #2 on: June 20, 2023, 11:40:05 PM »
hi, check out      headbolts.com    good luck,  gz

Offline maddog

  • a long haired redneck country boy
  • AMC Eagles Den Addicted
  • ********
  • Posts: 1827
  • Thumbs Up 50
  • AMC Eagle the original crossover
Re: Head bolts for the 4.0
« Reply #3 on: June 21, 2023, 01:04:22 AM »
Thank you guys. rmick I've seen a lot of bad reviews from fairly recent for the felpro ones. And I'll check out that website gz.
1998 CHEVY S10 (DAILY DRIVER/PROJECT) INTIMIDATIN'
1980 AMC EAGLE WAGON (PROJECT) EAGLE EYES
http://forums.amceaglesden.com/index.php?topic=30758.0
1983 AMC EAGLE LIMITED WAGON-SURVIVOR (gone)
http://forums.amceaglesden.com/index.php?topic=32372.0

Offline maddog

  • a long haired redneck country boy
  • AMC Eagles Den Addicted
  • ********
  • Posts: 1827
  • Thumbs Up 50
  • AMC Eagle the original crossover
Re: Head bolts for the 4.0
« Reply #4 on: June 21, 2023, 11:45:00 PM »
So I've been looking and I can only find head bolts for 97+ engines and mine is a 91. Would those actually work on my engine or is there a different thread pattern or something with the later model ones? Even the parts stores said they can't get them for my engine.
1998 CHEVY S10 (DAILY DRIVER/PROJECT) INTIMIDATIN'
1980 AMC EAGLE WAGON (PROJECT) EAGLE EYES
http://forums.amceaglesden.com/index.php?topic=30758.0
1983 AMC EAGLE LIMITED WAGON-SURVIVOR (gone)
http://forums.amceaglesden.com/index.php?topic=32372.0

Offline maddog

  • a long haired redneck country boy
  • AMC Eagles Den Addicted
  • ********
  • Posts: 1827
  • Thumbs Up 50
  • AMC Eagle the original crossover
Re: Head bolts for the 4.0
« Reply #5 on: June 24, 2023, 04:38:31 PM »
So after doing some research I have found that the arp bolts are the same part number for 86 through 96 as they are for 97 through 06. The only real difference I can find between the ones that I took off of my engine and the ones from felpro for the newer model engines is that the head of the bolts is a 12-point head on the new ones and a regular hex head on the old ones with the 12 point heads having a stem above two of the heads for lining up the valve cover gasket.
1998 CHEVY S10 (DAILY DRIVER/PROJECT) INTIMIDATIN'
1980 AMC EAGLE WAGON (PROJECT) EAGLE EYES
http://forums.amceaglesden.com/index.php?topic=30758.0
1983 AMC EAGLE LIMITED WAGON-SURVIVOR (gone)
http://forums.amceaglesden.com/index.php?topic=32372.0

 

SMF spam blocked by CleanTalk