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Old 09-16-2015, 12:05 AM   #126
Joshwrx04
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Quote:
Originally Posted by outfrontmotorsports View Post
The remaining thread from stock is .010 which is .005" per side. then the tap goes down the hole and removes 90% of the material in this area, thus it would be undetectable by the eye and is really splitting hairs. in fact I will make a video or show some pics in the near future to show and explain this.

so no there is not an issue with stud design. When you called and talked to the shop you talked to our shortblock assembler. Maybe I wasn't here but I am the one that does the tapping. I can not know what you two discussed about the procedure. We use a mill to do the tapping, I do not know what your shop uses. You can have 5 guys tap 5 holes and they could all be different in quality such as side loading a tap, pressure, cutting oils, etc. Timeserting is the only solution for what you have at this point. timesert makes a super long 1.5" insert, is that what is getting installed? , I suggest to remove the upper lip of the insert so that the counter boring process is eliminated. Installing all 12 timeserts should be a $300-600 range depending on the shop, their speed, etc.

Doing this is not normal nor have we ever seen a soft block yet because it's only a guess at this point. remember the only one we have had an issue with is getting timeserts to and we don't get it back

Look, we had a customer that wanted to do 14mm studs, we told him we would not do the job as we are not set up for the tapping. he went to another local shop. we get it back to do the boreing with deck plates. one of the studs pulled out! he went back to the shop and they would do nothing for him, they had charged him $850 to tap the block and then told him to pound sand and that it couldn't be the machining anything is possible.

good luck with your project
You are now!
I want to know what conclusion you find about my block
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Old 09-17-2015, 12:42 PM   #127
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Just curious do these engines that are ripping studs out utilize dual avcs?
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Old 09-17-2015, 02:20 PM   #128
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Originally Posted by spoolinsti05 View Post
Just curious do these engines that are ripping studs out utilize dual avcs?

Mine was, one of juniors was, but cam only has single avcs though so that theory is kinda bunk.



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Old 09-17-2015, 02:38 PM   #129
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Mine is single avcs
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Old 09-18-2015, 12:12 AM   #130
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Default Outfront 1/2" headstuds pulling threads at 21psi

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Originally Posted by Shortpersonbk View Post
Mine was, one of juniors was, but cam only has single avcs though so that theory is kinda bunk.



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True guess it's just cylinder pressures then I must be lucky I guess with the arp2000 that hold 42psi
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Old 09-18-2015, 06:08 AM   #131
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Originally Posted by spoolinsti05 View Post
True guess it's just cylinder pressures then I must be lucky I guess with the arp2000 that hold 42psi

Arp2000s are not the ones we are ripping out. Those will stretch before they pull out the threads on the block.


OP had it happen without the car being pushed or really tuned at all. Seems more like a machining or install error vs a cyl pressure issue.




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Old 09-18-2015, 12:44 PM   #132
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Originally Posted by Shortpersonbk View Post
Arp2000s are not the ones we are ripping out. Those will stretch before they pull out the threads on the block.


OP had it happen without the car being pushed or really tuned at all. Seems more like a machining or install error vs a cyl pressure issue.




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I'd like to agree with you on that but we would need to see the details. Is that what happened when your 625s ripped out too?
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Old 12-21-2015, 02:54 PM   #133
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I had a perfectly good set of l19's i should have kept. Lol
Yooo! Im selling my new l19s. I bought them, then I wanted 625+. So pm me!
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Old 12-21-2015, 08:52 PM   #134
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Yooo! Im selling my new l19s. I bought them, then I wanted 625+. So pm me!

I have 625's also. Motor is already in the car. Thanks tho
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Old 12-21-2015, 08:58 PM   #135
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I have 625's also. Motor is already in the car. Thanks tho
What you running? They holding up?
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Old 12-22-2015, 12:33 AM   #136
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Haven't turned it up yet on e85 and 30 psi. But they will do just fine. People have pushed 40 psi with them
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Old 12-22-2015, 07:28 AM   #137
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Haven't turned it up yet on e85 and 30 psi. But they will do just fine. People have pushed 40 psi with them

42psi on 6266 here with arp2000 and copper orings.
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Old 12-22-2015, 09:29 AM   #138
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42psi on 6266 here with arp2000 and copper orings.
What numbers you making? Impressive. I am doing 625 with orings and 6266 but if I could sell my 6266 pte, then 6766 will do
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Old 12-22-2015, 09:30 AM   #139
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42psi on 6266 here with arp2000 and copper orings.
How many runs in 42 psi already? You daily it?
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Old 12-22-2015, 11:37 PM   #140
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What headstuds would you guys recommend? ARP 625+ or IAG 1/2 headstuds, going to pushing around 43psi on a 6466.
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Old 12-23-2015, 08:18 AM   #141
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How many runs in 42 psi already? You daily it?

Yeah Daily, few dozen and few dozen 3rd gear pulls. I put a gen2 6466 I'm only on 28psi for now went 136mph with new 6466 haven't went to track on 6266 @42psi
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Old 12-23-2015, 09:04 AM   #142
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Yeah Daily, few dozen and few dozen 3rd gear pulls. I put a gen2 6466 I'm only on 28psi for now went 136mph with new 6466 haven't went to track on 6266 @42psi
Made more power with 6466
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Old 12-23-2015, 12:55 PM   #143
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Default Outfront 1/2" headstuds pulling threads at 21psi

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Originally Posted by KinkSti View Post
Made more power with 6466

Idk still hasn't been re tuned for 6466 pushed thrust bearing after p&l triple disc install and spun rod #2
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Old 01-28-2016, 11:34 PM   #144
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IAG started using 14mm studs now...hmmm
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Old 01-29-2016, 05:57 PM   #145
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They use both 1/2 and 14mm
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Old 01-25-2019, 03:23 PM   #146
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Originally Posted by mattistrouble View Post
What headstuds would you guys recommend? ARP 625+ or IAG 1/2 headstuds, going to pushing around 43psi on a 6466.
IAG 14mm
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Old 01-25-2019, 09:14 PM   #147
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Still rocking my Outfront 1/2" stud block. Running strong since 2013 with 30k+ miles!
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Old 01-29-2019, 01:28 PM   #148
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Me to, no problems with my 1/2 studs 4 years now.
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Old 02-10-2019, 03:05 PM   #149
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1/2" studs is the way to go. Also the 14mm studs distort the factory block case a lot when torqued. It make the main tunnel funky.

Ian Hayes,
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