World Aluminum Block Main Studs CAUTION
#782124
08/24/10 12:21 AM
08/24/10 12:21 AM
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Joined: Dec 2007
Posts: 77 British Columbia Canada
Challenger340
OP
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OP
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Joined: Dec 2007
Posts: 77
British Columbia Canada
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Like the title says, beware.
I Could not achieve a repeatable Torque Value on the Main Studs when Assembling a World Aluminum Block, then 1 Main Stud snapped in half !! Some had seemed to be "stretching" excessively @ 100ft/lbs just prior to this ? Upon removal and further inspection, I THEN noticed, that although the Nuts had "ARP" on them, the Main Stud Ends themselves DID NOT ? Fooled me up until then !
A subsequent Phonecall to ARP, confirms ARP Studs do indeed have "ARP" on the ends.
I Removed the suspected "Chinese" studs, and found they were "stretched" visually thinner in areas on the threads, from the Rec'd 100ft/lb Torque applied. Mic readings indicated many had indeed shrunk by .030" in Diameter at their weakest threaded points, and were also about to break !
CHECK your World Products Aluminum Blocks, and make sure your Main Studs themselves have "ARP" on the end, NOT JUST THE NUTS !
I will not comment on the phonecall I had with World Products ! however, I am still unsure how NON-ARP Studs? get mated to genuine "ARP" Nuts as delivered from World Products?
Better to be a "has been" than a "never was".
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Re: World Aluminum Block Main Studs CAUTION
[Re: Challenger340]
#782126
08/24/10 12:42 AM
08/24/10 12:42 AM
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Joined: Nov 2004
Posts: 3,544 Syracuse,NY
CompWedgeEngines
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master
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Posts: 3,544
Syracuse,NY
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The studs supplied with the World blocks are absolute garbage. I recently had the same issue with several World iron blocks, and not the first one by any means. I could not get a good torque reading, and at first, it actually felt like it was the threads pulling out of the mains. After some testing, I actually set up a height micropmeter to see if indeeed if was what I had susepcted.The " World" studs ( which look like a turned stud, and not a rolled thread) stretched to about .007 , some a bit more! Thats a 1/2" supposed 220,000# stud! THEY ARE CRAP!
I changed all the studs out for ARP, including side studs and problem solved. There were several things that World could have done much better, thats for sure, and to sell those blocks with those absolutely horrible fasteners is a shame.
ARP makes a kit to change them out now.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: World Aluminum Block Main Studs CAUTION
[Re: Dabee]
#782128
08/24/10 01:22 AM
08/24/10 01:22 AM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
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USA
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I guess the question is : Does World advertise the blocks as coming with ARP studs?
Also is the 100 foot Pounds their supplied torque value. If so, then whatever fastener is in that block should work at that torque value.
ANY TIME a fastener has that uneasy feeling when you are torquing it, you need to find out why! All fasteners should come up to torque and feel solid all the way.
SRT DEMON ONE SEAT
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Re: World Aluminum Block Main Studs CAUTION
[Re: CompWedgeEngines]
#782130
08/24/10 08:42 PM
08/24/10 08:42 PM
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Joined: May 2004
Posts: 12,418 Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,418
Taxes & Virus's R-US, NY
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Quote:
The studs supplied with the World blocks are absolute garbage. I recently had the same issue with several World iron blocks, and not the first one by any means. I could not get a good torque reading, and at first, it actually felt like it was the threads pulling out of the mains. After some testing, I actually set up a height micropmeter to see if indeeed if was what I had susepcted.The " World" studs ( which look like a turned stud, and not a rolled thread) stretched to about .007 , some a bit more! Thats a 1/2" supposed 220,000# stud! THEY ARE CRAP!
I changed all the studs out for ARP, including side studs and problem solved. There were several things that World could have done much better, thats for sure, and to sell those blocks with those absolutely horrible fasteners is a shame.
ARP makes a kit to change them out now.
NICE.....Getting ready to order an aluminum block soon, good to know.
Last edited by Dragula; 08/25/10 07:58 PM.
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Re: World Aluminum Block Main Studs CAUTION
[Re: RodStRace]
#782134
08/24/10 10:17 PM
08/24/10 10:17 PM
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Joined: Jun 2005
Posts: 6,257 gulfport, ms, west mi
rowin4
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gulfport, ms, west mi
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Looking at the spec. sheet I got with my aluminum World block it says:Race blocks come with nodular iron main caps with all five caps being two bolt style with cross-bolts on the first four positions. All the main caps use 1/2"-13 studs. Torque spec. on main studs is 100 ft. lbs. with oil and 45 ft. lbs. on the cross bolts This spec. sheet is generic as it covers both the aluminum and CGI blocks. Now looking in the catalog it says that all complete engines come with ARP internal hardware. So do they change out the studs to build their crate engines or is this a isolated case? My block is at the machine shop so I can't look but he'll be getting a call for sure, so will World.
it's ok to butt heads, just don't do it with a butthead
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Re: World Aluminum Block Main Studs CAUTION
[Re: Deepockets]
#782136
08/25/10 12:24 AM
08/25/10 12:24 AM
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Joined: Nov 2004
Posts: 3,544 Syracuse,NY
CompWedgeEngines
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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ARP 145-5603 stud kit for mains.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: World Aluminum Block Main Studs CAUTION
[Re: CompWedgeEngines]
#782137
08/25/10 12:31 AM
08/25/10 12:31 AM
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Joined: Feb 2005
Posts: 20,203 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,203
PA.
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Just curious Todd,are they 1/2 main studs or 9/16 like a Keith Black?
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: World Aluminum Block Main Studs CAUTION
[Re: pittsburghracer]
#782138
08/25/10 12:38 AM
08/25/10 12:38 AM
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Joined: Nov 2004
Posts: 3,544 Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: World Aluminum Block Main Studs CAUTION
[Re: HardcoreB]
#782140
08/25/10 10:50 AM
08/25/10 10:50 AM
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Joined: Oct 2004
Posts: 1,752 detroit area
moderncylinder
top fuel
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top fuel
Joined: Oct 2004
Posts: 1,752
detroit area
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i just got two world hemi blocks in,, iron,, first one i thought the studs were worn out cause they were mush when torquing them,, told the guy,, and put in arp... thought they were just used too much
then i got another motor in,, same studs,, has been apart and together twice,, im sure torqued up a few times in mocking up process,, they are soft.... then i read this,,, they just must be all crap
i was going to 105 with moly like i do with all 1/2 studs,, arp studs hit the number hard,,, the world studs either soft or i gave up cause i knew the stud was going to break
jeff
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Re: World Aluminum Block Main Studs CAUTION
[Re: moderncylinder]
#782141
08/25/10 11:35 AM
08/25/10 11:35 AM
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Joined: Jul 2010
Posts: 3,502 SOUTH JERSEY
HEMIFRED
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master
Joined: Jul 2010
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SOUTH JERSEY
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didn't Bill Mitchell/World try to dump those blocks real cheap like 3300.00 on ebay not long ago ?
home of the Sox and Martin Hemi Duster
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Re: World Aluminum Block Main Studs CAUTION
[Re: moderncylinder]
#782142
08/25/10 11:47 AM
08/25/10 11:47 AM
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Joined: Feb 2007
Posts: 5,080 organ
maximum entropy
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master
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Posts: 5,080
organ
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unacceptable. this also throws into question the accuracy of the machine work after replacing the hardware.
for what is the good life if not doing things thoughtfully?
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Re: World Aluminum Block Main Studs CAUTION
[Re: HEMIFRED]
#782143
08/25/10 11:53 AM
08/25/10 11:53 AM
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Joined: Jan 2003
Posts: 1,938 Sonora CA
Mopar_Rich
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Posts: 1,938
Sonora CA
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After I wrote my HEMI book, I broke a World main stud while assembling an aluminum motor. I used an iron World block in the book and had no issues so I talked to the powers to be and they said they did indeed have issues with their stud supplier. But that was over a year back, and they told me that new blocks would use ARP studs.
Then about 4 months back I had another aluminum World HEMI block delivered and it had all ARP.
Last edited by Mopar_Rich; 08/25/10 12:10 PM.
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