ak diesel driver
6.5 driver
air in system ?
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ugh I kinda wanna do the scat too.... I need to stop talking to you guys
Anyways I have not been able to look into the ARP main studs yet but I did find another brand that seems to be ok. I was looking a little bit on the ARP catalog as to why they are "the best" and it mentions being center ground and thread rolled after heat treatment, whereas others do this before since it is easier on machines.
The other brand I found has 190,000 psi tensile strength studs in various sizes, and they are also center ground and rolled after heat treatment. Their site says "8740 chrome moly steel aircraft quality" whereas ARPs are "far superior to aircraft quality".
Like I said, not sure on the pricing of ARP studs, anyone know the size of the studs needed?? But this other place has sets of 4 in various sizes for $18-25.
Well I am not sure what the difference would be between USD and Canadian prices from ARP (unless those quotes are USD), but I would imagine they are not that much different. I am all for studding this thing but that is too much for my budget. Now here is my question, there are four bolts per main correct?? And the two outside are smaller than the insides on some years correct (what years??). If I were to stud it, should I stud all four then? Which would be 20 studs then?
I see what you mean about the DSG girdle since those are ARPs. That is perfectly fine with the measurements, maybe someone else knows, anyone??
If I can get the size I need from Milodon, I will do it, and with the money I saved, I will consider the scat crank
If not, I may do hardened bolts like you guys did turbonator. So did you guys leave them as bolts? or if they were threaded all the way couldn't you cut them off and essentially have a stud??
Thanks again guys
the smaller bolts started in 1996-97 i belive, we looked for the bolts with the thread all the way to the top, but we were told that hardened bolts are not done like that, only the amount of thread that is needed, then smooth shank..... we cut the bottom of the bolt, with the tap turned on the bolt first, then chased the threads after.... i dont think the whole bottom end needs to be studded, only the out side with the cracking issue.... i thought to use specially threaded stock like what is used for diff. u-bolts, but have not inquired...
Hello again, ANOTHER update
So I was able to round up some part #s for the studs:
AU4.900-1LB: These are for the inner main bolt holes, $7.86 a piece
AU4.175-1LB: These are for the outers. They MAY be a little long, but this is the shortest ARP has on hand in what we need. If they are long, I will simply be using some iron to block them up or making a girdle. I don't have an exact price on them yet but I will know soon. It will probably be around $7.30 a piece.
300-8337: 12 point metric nuts for the studs, $44.82 for a 10-pack
200-8537: washers, $9.90 a 10-pack
Thanks to MaxPF over at the Place for the #s, turns out he did the research years ago and posted them. The prices are current though.
So we are looking at approximately $130 to stud the outer holes and $135 to do the inner holes. I am somewhat on the fence about whether or not to do both. My thoughts are what if leaving the bolts in the inners defeats the purpose of the studs? Which one would I torque first? I am going to be doing hard-blok in addition to the studs so I don't know if the inners would be necessary. I don't really wanna spend $265 on studs that we are not even sure is going to make a big difference. But swallowing the $130 is fine for me.
Considering there are probably bigger issues than the fasteners in terms of building a better bottom end in these motors, I don't think the inners would be worth it to stud, as long as leaving the bolts there doesn't somehow hinder the performance of the studs (considering GM has you torque head bolts higher than ARP tells you to torque their head studs). What do you guys think??
I would like to hear your opinions!