Caboobaroo Posted February 2, 2006 Share Posted February 2, 2006 SO after the whole 600 bucks for a single set of ARP headstuds, I've been looking into possibly going a different route for them. I'm thinking about redrilling the block and tapping it for maybe a standard thread pitch possibly? Also, doesn't seem like heat treating is all that hard to do but I'm going to give it a shot. All this work will be done on a toasted EA82T block so no worries about wrecking a good block or anything. Also, if I can get me a good set of headstuds, would copper headgaskets work then seeing I would be able to torque the heads on tighter? Quote Link to comment Share on other sites More sharing options...
torxxx Posted February 2, 2006 Share Posted February 2, 2006 no it wont. copper head gaskets were found to be too soft for over torqing. WJM has a thread about it somewhere. it was in the last few weeks Quote Link to comment Share on other sites More sharing options...
[HTi]Johnson Posted February 2, 2006 Share Posted February 2, 2006 why are headstuds so expensive, what's so special about a heat treated high grade piece of All-Thread? Quote Link to comment Share on other sites More sharing options...
nkx Posted February 2, 2006 Share Posted February 2, 2006 Also, doesn't seem like heat treating is all that hard to do but I'm going to give it a shot. youre talking about heat treating a set of oe headstuds, right? Quote Link to comment Share on other sites More sharing options...
Subaru Jim Maple Ridge Posted February 2, 2006 Share Posted February 2, 2006 You could put any kind of stud in that you want. You still can't put much more steam on them because the threads in the aluminum block can still only hold about 65 ft.lbs and the stock headbolts can exceed twice that without deformation. You might try JB Weld or a thread locking compound, but I doubt that you can improve the holding power of an aluminum block very much. Quote Link to comment Share on other sites More sharing options...
torxxx Posted February 2, 2006 Share Posted February 2, 2006 You could put any kind of stud in that you want. You still can't put much more steam on them because the threads in the aluminum block can still only hold about 65 ft.lbs and the stock headbolts can exceed twice that without deformation. You might try JB Weld or a thread locking compound, but I doubt that you can improve the holding power of an aluminum block very much. Well Said. Thats the biggest thing about these Aluminum blocks. It'd help if Fuji Industries had developed the older engines with steel inserts for the head bolts to thread in to. Quote Link to comment Share on other sites More sharing options...
Ross Posted February 2, 2006 Share Posted February 2, 2006 You could put any kind of stud in that you want. You still can't put much more steam on them because the threads in the aluminum block can still only hold about 65 ft.lbs and the stock headbolts can exceed twice that without deformation. You might try JB Weld or a thread locking compound, but I doubt that you can improve the holding power of an aluminum block very much. Studs do hold on better - simply because they are already locked in place in the block when you torque the head - easier to strip a thread when tightening a fastener than to pull it straight out. Quote Link to comment Share on other sites More sharing options...
calebz Posted February 2, 2006 Share Posted February 2, 2006 Well Said. Thats the biggest thing about these Aluminum blocks. It'd help is Fuji Industries developed an older engine with steel inserts for the head bolts to thread in to. Timeserts do the trick quite nicely Quote Link to comment Share on other sites More sharing options...
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