My thoughts exactly. I have never considered doing a cam, because that's a lot of work for not a ton of gain, but if I have the engine out on a stand rebuilding it then it makes much more sense. No mall crawling here, too many dents to ever be a garage queen. I didn't cut the fenders and shove 35s under it nothing!

 

For head bolts a helicoil is not what you need to use. you need to use TIME-SERTS...they are WAY stronger...IIRC I had to do 3 or 4 on my truck (I ran ARP studs as well but I went to 80LB). The inserts them selves aren't too expensive but the entire kit to do it is ($650). I would see if someone you know has a kit you could borrow. Below is a link to their site....you can also (of course) find the kits on Amazon.

https://time-serts.com/

 

I put what ever cam TWS recommended in my engine when I rebuilt it and honestly couldn't tell any difference. I guess they are cheap enough if you pull the stock one for some reason, why not. Otherwise it's a waste of money.

 

I put a 4.6L cam in my 4.0L when I rebuilt it...runs fine, not sure it made any appreciable horsepower or torque gain (butt dyno didn't notice any) though and as the "cheapest" upgrade from the stock 4.0 cam, I figured...why not. (LOL)

 

Well, to be honest with you, I would rather start over and rebuild a different motor on a stand than have to go thru and put inserts in half the block. I'm fairly confident I used the 100 ft-lb rating, and if that's the case, then this will definitely not be the only thread to let go. And if I had to buy that kit then it wouldn't even be that much more expensive to start over. Also as I said in the other posts, I want to be able to drive it this semester, which is why I want to just drive on it as is. And, I'm scared of not doing the inserts right have having to get a new block anyway.

 

I did a long post on studs vs head bolts here: https://landroverforums.com/forum/di...92/#post786998

If you have the wherewithal to get another block to use I would recommend doing so.

 

Wow, the poster of that thread had the exact same thing happen to him as me it seems. Similar timing, 20k post HG and also with studs. Very interesting. After this experience I am on your side and am planning on headbolts in the new engine. I have wondered about about the differences of studs/bolts in this application as I am in school for mechanical engineering, and have wanted to ask my professor his opinion (specific class I am in has lots of bolt loading problems). Are you mechanical? I would guess so based on what you said in that thread.

 

Read your signature and got my answer lol

 

Yes, BSME and 34 year experience in machine design and manufacturing.

 

Is this still up for grabs? I already got a parts truck and a good block for myself, but I have a friend in the Raleigh-Durham area that is in need of a good 4.0 block. Can I put y'all in touch?