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Shop Talk - Tool and Shop Discussion! Tool and Shop Discussion! |
11-18-2015, 09:55 AM
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#1
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Name: Cowboy303
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2013
Member`s Gallery
Posts: 57
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Which SHCS Head Bolts
Howdy Guys, I replaced my head bolts with Socket Head Cap Screws last year, well due to some compounded crappy choices, the HG blew and the head is in the shop. Last time I used some Fastenal and some Mcmaster bolts, one of the Fastenal bolts was the one that failed. I thought I had gotten Holo-Krome brand from Fastenal, but they appear to be marked "FKE" instead of HK. So, I'm looking to get the best bolt I can, just to give me the best chances possible.
The McMaster Carr Bolts "have a minimum tensile strength of 170,000 psi. and a minimum Rockwell hardness of C38" and "have a Class 5g6g thread fit. They meet DIN 912/ISO 4762." The baggie the bolts came in said "made in taiwan", and the bolts have "LOBO" in the top of them.
The Holo-Krome bolts meet the same 4762/912 specs, and have the same 5g6g thread fit. However I can't find anything about rockwell hardness or psi rating.
With my somewhat conservative goals (400hp max), I could probably run stock bolt. But I would rather go this route.
What brand would you guys go with?
Thanks.
__________________
Quote:
Originally Posted by angelic0
i'm waiting for my GF to go into labour so i don't have time to run to the shop to take pictures, but i will post some as soon as i can...
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Quote:
Originally Posted by madmikeismad
Thats dedication. Baby on the way, and still finds time to post in the forums
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11-18-2015, 09:57 AM
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#2
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Name: 12vriviera
Title: That Guy with that car
Status: Not Here
Join Date: Mar 2009
Location: north texas
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Posts: 6,846
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I didn't have an issue with fastenal bolts at 130 lb ft..
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11-18-2015, 10:12 AM
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#3
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Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,961
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Sounds like these bolts are giving you more problems than stock bolts.
Chris
__________________
THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply
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11-18-2015, 10:16 AM
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#4
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Name: 97rada
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
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Posts: 5,410
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Why not just run stock bolts?
__________________
Austin
tow truck- 14-3500 with tuning
toy truck -94 rclb auto- 5.2x with a lot left. Shooting for 4s
Any intelligent fool can make things bigger and more complex...it takes a touch of genius- and alot of courage to move in the opposite direction.
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11-18-2015, 10:28 AM
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#5
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Name: Kick Start
Title: Banned
Status: Not Here
Join Date: Feb 2009
Location: Louisville, KY
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Posts: 3,173
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Why not just run studs?
__________________
lilspoon
SPiT Diesel
Piss Excellence
All possible because of UNICORNS
Wampus Cat Diesel
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11-18-2015, 02:01 PM
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#6
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Name: Tate
Title: What?
Status: Not Here
Join Date: Nov 2007
Location: Airdrie, Alberta
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Posts: 3,419
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Both stock head bolts and the socket head caps are 12.9. The head bolts are waisted for even stretch throughout, unlike the SHCS. And they were spec'd for use in your engine. Get some stock bolts and put them in, or get some studs. Quit wasting money on generic bolts and headgaskets.
__________________
'98 3500 2wd, 24v, 5 spd, p-pumped
'98 2500 4wd, 12v, 6 spd, VP'd
'02 VW Jetta, 5 spd.
My p-pump conversion pics
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11-18-2015, 07:55 PM
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#7
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Name: Cowboy303
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2013
Member`s Gallery
Posts: 57
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Just to correct what I said above, the stock Mcmaster bolts bag actually says "Made in Italy".
Thank you all for your opinions, I'll do some pondering on it. Studs are basically out of the question due to small goals and even smaller budget, This is basically a budget beater that I have more fun wrenching & tweaking on then actually driving.
__________________
Quote:
Originally Posted by angelic0
i'm waiting for my GF to go into labour so i don't have time to run to the shop to take pictures, but i will post some as soon as i can...
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Quote:
Originally Posted by madmikeismad
Thats dedication. Baby on the way, and still finds time to post in the forums
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11-18-2015, 08:30 PM
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#8
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Name: YoungDiesel27
Title: Never Enough Time
Status: Not Here
Join Date: Jul 2010
Location: West Virginia
Member`s Gallery
Posts: 825
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Quote:
Originally Posted by Cowboy303
Just to correct what I said above, the stock Mcmaster bolts bag actually says "Made in Italy".
Thank you all for your opinions, I'll do some pondering on it. Studs are basically out of the question due to small goals and even smaller budget, This is basically a budget beater that I have more fun wrenching & tweaking on then actually driving.
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I understand the budget beater theory, but by the time you account the wasted set of bolts and gasket you just used, and the next set your going to use, you have spent as much as a set of ARP 2000 studs.
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01-29-2016, 08:06 AM
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#9
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Name: hotrodford
Title: don t feed the bears
Status: Not Here
Join Date: May 2015
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Posts: 32
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ARP
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01-29-2016, 09:28 AM
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#10
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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Quote:
Originally Posted by Cowboy303
Just to correct what I said above, the stock Mcmaster bolts bag actually says "Made in Italy".
Thank you all for your opinions, I'll do some pondering on it. Studs are basically out of the question due to small goals and even smaller budget, This is basically a budget beater that I have more fun wrenching & tweaking on then actually driving.
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Lots of people with budget trucks tighten stock head bolts to 125-130 ftlbs. You're going to want probably two sets of bolts though because they'll start to stretch, then you throw that bolt out and try the next.
I don't recommend this, but it's certainly cheap to do!
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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01-29-2016, 09:43 AM
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#11
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Name: zfaylor
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2010
Location: P-TOWN!, Indiana
Member`s Gallery
Posts: 5,024
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People on a tight budget end up spending twice as much as doing it right the first time. I used to be one of those guys that tried everything in my power to save a dime. Every time I spent more time worrying if it would work than enjoying my truck. Take it for what it is worth OP but it is much more enjoyable to do things right and have confidence in your truck than to put it on the ragged edge with questionable parts.
Laundry list of things I always worried about when I had fastenal bolts in my truck years ago:
tow truck bill
head gasket
resurfacing the head
possibly destroying my engine if some randomly broke after install allowing coolant into my oil
$400 on arps and call it a day. Today you want 400hp but I promise you tomorrow you will be bored of it and keep wanting more.
__________________
2015 half ton heavy chevy
81 Fairmont LS project
Many yard ornament projects...
North American Turbo
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04-05-2016, 09:09 AM
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#12
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Name: hotrodford
Title: don t feed the bears
Status: Not Here
Join Date: May 2015
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Posts: 32
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ARP is a decent bolt and or stud , depending on application
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04-05-2016, 10:16 AM
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#13
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Name: jimbo486
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Orange County, CA
Member`s Gallery
Posts: 1,617
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I'd say, even at 400hp, stock bolts (or new replacements) would do just fine. As said a few times already, stock bolts or $400 for ARP 2000s is cheaper in the long run than spending time and money playing around trying to find "the right" bolt.
__________________
1990 Dodge D350
Giles' 12mm VE - Airdog II 165 - 370s @ 75lpm - BW S362fmw/68/12 - Hamilton 182/214 - '01 NV5600
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04-05-2016, 11:02 AM
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#14
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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How'd this thread come back to life?! ;-)
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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04-05-2016, 11:06 AM
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#15
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Name: DirtyMaxx03
Title: Too Much Time
Status: Not Here
Join Date: May 2011
Location: San Antonio, TX
Member`s Gallery
Posts: 2,862
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Quote:
Originally Posted by CorneliusRox
How'd this thread come back to life?! ;-)
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Quote:
Originally Posted by hotrodford
ARP is a decent bolt and or stud , depending on application
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....
__________________
Sean
Stock 2005 LLY
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