Re: rocker shaft studs
[Re: DusterKid]
#2454031
02/19/18 05:40 PM
02/19/18 05:40 PM
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Joined: Feb 2005
Posts: 20,197 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,197
PA.
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Summit sells about any stud size you may need.
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: rocker shaft studs
[Re: DusterKid]
#2454067
02/19/18 06:56 PM
02/19/18 06:56 PM
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Joined: Jan 2003
Posts: 8,033 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,033
Tulsa OK
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Don't buy the mancini stud and hold down kit. I did and while the hold downs were great the studs were horrible, most of them were not straight and the slot for a flat head screwdriver in the end of them was soft and tore up easily. Hold downs were awesome though.
Sorry I am no help on the 5/16" studs. I have bought ARP 3/8 studs for some race W2 stuff but I suffered through the mancini wobble studs for my old LA heads.
68 Barracuda Formula S 340
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Re: rocker shaft studs
[Re: DusterKid]
#2454281
02/19/18 11:57 PM
02/19/18 11:57 PM
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Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
master
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master
Joined: Jan 2003
Posts: 5,444
Indiana
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What about these from McMaster-Carr? They are rated at 150,000psi(Grade 8) pending your spring pressure.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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Re: rocker shaft studs
[Re: 340Cuda]
#2454516
02/20/18 01:07 PM
02/20/18 01:07 PM
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Joined: Jan 2005
Posts: 1,776 Keymar, MD
DusterKid
OP
top fuel
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OP
top fuel
Joined: Jan 2005
Posts: 1,776
Keymar, MD
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A while back I went through this with 5/16" studs. I was not successful in finding anything that was long enough to pull down the rocker shaft and have enough threads not to bottom out before it was tight.
If you are successful please share the solution.
Thanks, Bill Did you happen to try any of these, this is what I have found so far... ARP 200-2402 1/2" course, 1 1/2" fine, ball nose 1/4" 2.7" OL chromoly 170,000 ($16 for 4) Dorman 675-094 1/2" course, 1 1/2" fine 2.5 OL Grade 8' ($9 for 10 ) Trick Flow 70000100-204 2.25 OL ($15 for 4)
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Re: rocker shaft studs
[Re: DusterKid]
#2456265
02/23/18 06:27 PM
02/23/18 06:27 PM
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Joined: Jan 2005
Posts: 1,776 Keymar, MD
DusterKid
OP
top fuel
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OP
top fuel
Joined: Jan 2005
Posts: 1,776
Keymar, MD
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Yes using Edelbrock heads. I can't seem to find a stud with longer than 1/2" of threads to go into the heads, is that enough? Factory bolts are closer to 3/4" if I remember right.
Last edited by DusterKid; 02/23/18 06:28 PM.
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Re: rocker shaft studs
[Re: DusterKid]
#2456316
02/23/18 08:22 PM
02/23/18 08:22 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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Yes using Edelbrock heads. I can't seem to find a stud with longer than 1/2" of threads to go into the heads, is that enough? Factory bolts are closer to 3/4" if I remember right. My machinist ordered mine individually through arp years ago for my E-Brocs...........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: rocker shaft studs
[Re: DusterKid]
#2457370
02/25/18 04:38 PM
02/25/18 04:38 PM
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Joined: Jan 2005
Posts: 1,776 Keymar, MD
DusterKid
OP
top fuel
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OP
top fuel
Joined: Jan 2005
Posts: 1,776
Keymar, MD
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Another update:
ARP studs arrive, nice quality as always from ARP. Let they said only 1/2" of course threads. Due to the 1/2" length, the amount of threads into the head is about 2 threads less than a factory bolt. Not something I'm comfortable using, so I tried the Trick Flow Studs since they are 5/8" course, which is adequate, but since they are only 2 1/4" long, it only leaves .120" for a nut, which isn't enough IMO. So for now I'm just going to use the factory bolts. So if anyone happens to run across 5/16 studs with 5/8-3/4" course threads that are 2 1/2 - 2 3/4" long, those would be idea for this and please share as I'm sure I'm not the only one that would buy a set or 2.
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