I gonna go ahead and try helicoil on one of the hole of my d16z6 block, i gonna be boosting 10 psi.

what do u guys think?

 

What hole? Spark plug hole?

 

where one of the actual headbolt goes on the block.

no thread down there.

 

I got one block hole theaded, and got a helicoil in there, but after that, the ghey little plastic tool they give you was so chewed up, and i couldnt seem to get another helicoil in using it, so i gave up, i hate helicoils....

 

I only have the problem in one hole, i think i gonna be fine.

 

Isn't there like a metal-locking liquid. Put some of that on so it holds good.

 

jb weld?

 

i'm getting mine down right now. i hear you only get one chance at it and if you **** up the block is ruined. so if you never done it b4 it might be a good idea to practice doing somewhere else first

 

Nah not that stuff its called Lock-thread I think. You can get sample packs of it at autoparts stores. But the stuff works. But I'm not to sure how it works under extreme temps. I'm not saying it won't but I'm not sure if it will. I've only used it like twice and it held up its really strong. use it on the helicoils NOT the head bolt.

 

I have to do one right now. We were torquing down the headbolts and one of them kept turning. This could really suck for me since its a fully built and sleeved 2 liter LS block. So I dropped it off at a decent machine in the area. Figure let the pros handle it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iNetForce &raquo;</TD></TR><TR><TD CLASS="quote">I gonna go ahead and try helicoil on one of the hole of my d16z6 block, i gonna be boosting 10 psi.

what do u guys think?</TD></TR></TABLE>


Should work perfectly fine. A lot of high compression V8 guys puposely remove all the stock threads and replace them with helicoils.

 

What's a helicoil?

 

http://www.emhart.com/products/helicoil.html

If you strip the threads out in a hole you can put a helicoil in there to replace the threads you stipped out.

 

This is true thats what my machine shop told me. Its actually stronger that stock threads.

 

Bump for an old *** thread.

Im having this same problem....can you actually insert a Heli-Coil down into the block like that? i thought it was for surface threads only?

I actually removed the old threads when i took out a head bolt. it looked like a helicoil itself stuck on the bolt! it wasnt, but i dont have to drill out the holes, only tap.

 

heli coils work fine, i personally would prefer just drilling out the old ones and taping in 1/2" threads and get some custom 1/2" studs from arp, but thats only becuz i have access to free machining

 

i'de drill out in a heart beat. But im scared to go too far. Also, arent B series studs wider than D series?

 

if the block is important to you I would just let a machine shop do it, if they f up its on them

 

well yea its important, its in my car...

i'll try Heli-Coil and see how that goes.

I priced Timeserts...F that, they are like $400 for the D16 headbolt repair kit. I paid like $450 for my ZC longblock!!

anyways my block maybe under warranty.

 

how?
This? http://www.etoolcart.com/time-sert-h...-kit-7111.aspx

You don't need that whole kit... it is really nice, but it has more than you need.
What's needed is the specific kit for the size you plan to do.
Buy the size you need and then a bag inserts.

Try contacting shops near you and they should have time-serts or heli-coils. It may come out to be around the same price to have somebody else do it since they may already have the kit you need. Worth checking into IMO

 

Question, since the Timeserts have lips on them, how would i be able to use them on a block if the thread doesnt start until like 2 inches into it?

Helicoils i know i can push all the way down there. I guess the thing that bothers me is that i was getting ready to sell this thing. I noticed a leak coming from the head/block and some white smoke so i changed the headgasket, hooked up a fan switch since mine was fualty. Now i noticed one of the head bolts wasnt tightening.

So yea, all of this just to sell it once im down. All i really need is longer head bolts, the "bottom of the thread" in the block will grab, just not the upper portion of the threads.

 

http://www.youtube.com/watch?v=RvmL0pEphQI

 

I just bought ARP head studs and they chewed the f*ck out of two of my threads. My teacher at school has a helicoil kit im gonna give it a shot

 

Alright, i picked up some individual (3) timeserts. 10x1.5, i know its bigger than the original head bolts BUT i picked up some 3' length 10x1.5 all thread, with nuts and washers. oh i got some lock-tite also.

Im pretty sure this is all i need to make this **** work finally.

King Bolt in Covina, CA is the ****, they have EVERYTHING you can imagine for hardware/electrical. very good prices also.