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426 main and head studs

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Peterson View Drop Down
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Joined: 05 Mar 2011
Location: Westboro, Wi
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peterson Quote  Post ReplyReply Direct Link To This Post Topic: 426 main and head studs
    Posted: 01 Jan 2013 at 7:44pm
Does ARP make the studs and have them in stock or are they special order? Or does someone else make them? Any help would be great.

Thanks
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2
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DrAllis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2013 at 8:08pm
Until you get over 1000 HP OEM main cap bolts and head bolts are fine.
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Peterson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peterson Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2013 at 8:43pm
Ok. I still atleast would like to do main studs. I like to over build my engines somewhat. If one was to have some made, what would you get them made out of? Like 4340 or?
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2
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wi50 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wi50 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2013 at 9:11pm
If you want to overbuild your engine spend all the money you were going to spend on head and main studs, drive to Eau Claire and see Gary Baxter, Baxter Engines. o-ring the head and heat treat the connecting rods. Those things will give long before the hardware will.
"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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Peterson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peterson Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2013 at 9:14pm
Rods I got already. And I was really thinkin about o-ringing the head too. But if I could get the mains done, then later I could do the head and head studs.
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2
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wi50 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wi50 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2013 at 9:30pm
How much fuel and wind do you plan to push in this thing?

The clutch will give long before any other problems, next will be the head gasket before the mains move. Might as well girdle the mains, studs will do verry, verry little to keep the caps from walking when you get to the point of pushing enough wind in it.

What I'm getting at is that I'm runnung bolts in the girdle and mains on a 3000+ hp 7 main block application and the block will rip open above the main saddles before those bolts will give or the main caps will walk. The head bolts came from a John Deere engine. Though it's on alcohol. The neighbor is pushing in the real high 2000's hp and nothing more than a thin girdle and bolts hold the crank in his 4 turbo diesel SS.


Edited by wi50 - 01 Jan 2013 at 9:34pm
"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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Peterson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peterson Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2013 at 9:34pm
Well for starting out i've got a dm4631 thats at 320cc's and 4x18 injectors. And i have a billet wheel hx52 holset, which is 67/70/16.
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2
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injpumpEd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2013 at 9:45pm
Originally posted by peterson peterson wrote:

Well for starting out i've got a dm4631 thats at 320cc's and 4x18 injectors. And i have a billet wheel hx52 holset, which is 67/70/16.
With that fuel system you'll need to fire-ring the head (drop on rings). I have a personal knowledge of that pump, she's hott!
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Todd Domann View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Todd Domann Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jan 2013 at 12:59pm
Peterson,
 
Call my Dad Elvin at 785-224-4560.  We may have some main studs leftover from our 426 days.
 
Thanks, Todd
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