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.


  • November 23, 2024, 08:59:52 AM

Login with username, password and session length

Author Topic: several 4.0 head swap questions  (Read 11816 times)

0 Members and 2 Guests are viewing this topic.

Offline Baskinator

  • Eagle Limited
  • *****
  • Posts: 526
  • Thumbs Up 31
  • Limerick, PA
Re: several 4.0 head swap questions
« Reply #15 on: February 02, 2012, 09:25:16 PM »
Oh, right. Didn't realize it was the 4.0 block he was talking about haha. Nevermind...
1982 AMC Eagle SX/4 (Work In Progress)

Photobucket Album: http://s1237.photobucket.com/albums/ff479/Baskinator/

Offline kajsdf

  • Eagle DL
  • ***
  • Posts: 171
  • Thumbs Up 8
Re: several 4.0 head swap questions
« Reply #16 on: February 03, 2012, 11:36:49 AM »
i've already got the head and exhaust picked up, got them off someone's 4.0 for $100 altogether. i dropped it off at the machine shop a d they found one crack in the valve seat of one of the cylinders...it isn't leaking anything, but it still makes me a little nervous. i went ahead and threw in some new lifters since it looks like the swap is on hold for a bit. i did the 2150 +tfi/whatever you want to call it already so i'll be running better in the meantime. thank you all for the suggestions and advice
1985 eagle wagon limited
now more limited...
2150 swap...tf727/np229 swap...258 megabuild in the works...

Offline vangremlin

  • Administrator
  • AMC Eagles Den Addicted
  • ******
  • Posts: 4485
  • Thumbs Up 217
Re: several 4.0 head swap questions
« Reply #17 on: May 19, 2013, 03:21:38 PM »
whoops, meant cherokee etc...just listed in the same engine manual.

might be a dumb question, but is there enough room to remove the cam without pulling the engine?

Sorry to resurrect an old thread, but just wanted to make sure it was on record that you can remove the cam without pulling the engine. 
1981 Kammback 258 - "Pepe"
1980 Coupe 258 - "Ginger
1972 Gremlin X 304
1978 Gremlin 4 cyl 121 - sold
1964 TBird 390 - sold

Offline kajsdf

  • Eagle DL
  • ***
  • Posts: 171
  • Thumbs Up 8
Re: several 4.0 head swap questions
« Reply #18 on: June 09, 2013, 05:10:43 PM »
yes, pull the head and lifters. also need to pull radiator and ac condenser if you have it, then timing set etc. can pull can through the front end where radiator was before, just be careful not to bang the cam up when removing and reinstalling
1985 eagle wagon limited
now more limited...
2150 swap...tf727/np229 swap...258 megabuild in the works...

Offline Eagleearl

  • Eagle Sport
  • ****
  • Posts: 379
  • Thumbs Up 20
Re: several 4.0 head swap questions
« Reply #19 on: June 10, 2013, 01:11:19 PM »
Also the 4.0 cam has no fuel pump lobe so you would need to go with an electric fuel pump. I think you could find an aftermarket 4.2 cam with similar statistics to the 4.0 cam if you are running a carb.

Offline vangremlin

  • Administrator
  • AMC Eagles Den Addicted
  • ******
  • Posts: 4485
  • Thumbs Up 217
Re: several 4.0 head swap questions
« Reply #20 on: June 11, 2013, 09:48:45 PM »
Also the 4.0 cam has no fuel pump lobe so you would need to go with an electric fuel pump. I think you could find an aftermarket 4.2 cam with similar statistics to the 4.0 cam if you are running a carb.

I went with this one, not a real radical cam but an upgrade from stock and still has the fuel pump lobe.

Comp Cam CL68-115-4
1981 Kammback 258 - "Pepe"
1980 Coupe 258 - "Ginger
1972 Gremlin X 304
1978 Gremlin 4 cyl 121 - sold
1964 TBird 390 - sold

Offline AMCLOVER258

  • Eagle DL
  • ***
  • Posts: 249
  • Thumbs Up 4
Re: several 4.0 head swap questions
« Reply #21 on: November 12, 2014, 02:15:53 PM »
Also the 4.0 cam has no fuel pump lobe so you would need to go with an electric fuel pump. I think you could find an aftermarket 4.2 cam with similar statistics to the 4.0 cam if you are running a carb.

I went with this one, not a real radical cam but an upgrade from stock and still has the fuel pump lobe.

Comp Cam CL68-115-4


How did that cam perform for you? As i get closer to my head swap im starting to get antsy with it... is the 4.0 head, cover and bolts all i need?? or am i better off getting the 258 head ported and slapping it back on? also i understand the cam can be pulled in the engine bay is it difficult to manuver? and push rods.. should i go stock or longer? what would be the benifits and cons?

 

SMF spam blocked by CleanTalk