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Anybody using the Hughes rocker shaft hold down kit? #266672 03/25/09 10:21 PM 03/25/09 10:21 PM
Joined: Jan 2003 Posts: 2,405 Wichita,KS B Blakcharger440 OP top fuel
Blakcharger440 OP top fuel B Joined: Jan 2003 Posts: 2,405 Wichita,KS	The 440 I have has the Crane Gold rocker arm kit on a set of stealth heads with the Hughes rocker shaft hold downs. When I put the nuts on the shaft studs the nut only goes on about half way leaving alot of the threads left on the nut whic worries me. How far do you guys run your studs into the head before putting on the nuts? I was told you are not supposed to bottom out the stud into the head but back them out a turn or two....but that still doesnt account for the nut only going on half way. Any body else running these hold downs?

Re: Anybody using the Hughes rocker shaft hold down kit? [Re: Blakcharger440] #266673 03/25/09 11:19 PM 03/25/09 11:19 PM
Joined: Jan 2003 Posts: 1,811 North Dakota Azzkikrcuda top fuel
Azzkikrcuda top fuel Joined: Jan 2003 Posts: 1,811 North Dakota	I have the same problem, You are supposed to set them so the nuts are even with the top of the stud. If you do it like that, the lenght of the stud below the shaft is about the same as a stock bolt. I would have liked them to be longer to get more thread engagment.

Re: Anybody using the Hughes rocker shaft hold down kit? [Re: Blakcharger440] #266674 03/25/09 11:49 PM 03/25/09 11:49 PM
Joined: Oct 2007 Posts: 485 Raleigh, NC J j.mcconnell mopar
j.mcconnell mopar J Joined: Oct 2007 Posts: 485 Raleigh, NC	i have a small block (black billet) set and dont remember that being and issue. the issue i did have was the fact that the hole in the hold down had play around the stud making it a pain the space the rockers. i dont know if thats normal but i think theyll work

Re: Anybody using the Hughes rocker shaft hold down kit? [Re: j.mcconnell] #266675 03/26/09 07:23 AM 03/26/09 07:23 AM
Joined: Aug 2004 Posts: 3,333 MARYLAND 69Cuda340S master
69Cuda340S master Joined: Aug 2004 Posts: 3,333 MARYLAND	I run them on SB Edelbrocks. I put a drop of blue loctite on them and screwed them so the studs just barely sticks out of the nut. Just don't let the loctite go down into the oil feed hole.

Re: Anybody using the Hughes rocker shaft hold down kit [Re: Blakcharger440] #266676 03/26/09 10:29 AM 03/26/09 10:29 AM
Joined: Jan 2003 Posts: 75,098 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,098 A Banana Republic near you.	Quote: The 440 I have has the Crane Gold rocker arm kit on a set of stealth heads with the Hughes rocker shaft hold downs. When I put the nuts on the shaft studs the nut only goes on about half way leaving alot of the threads left on the nut whic worries me. How far do you guys run your studs into the head before putting on the nuts? I was told you are not supposed to bottom out the stud into the head but back them out a turn or two....but that still doesnt account for the nut only going on half way. Any body else running these hold downs? get longer studs , obviously the studs you have are too short for how deep the holes are in your heads . are they studs for stock iron heads? Contact Greg Z. I think he has stud kits specifically for Ebrock heads which are longer ...

Re: Anybody using the Hughes rocker shaft hold down kit [Re: JohnRR] #266677 03/26/09 01:27 PM 03/26/09 01:27 PM
Joined: Jan 2003 Posts: 31,082 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,082 Oregon	I'm not sure if MagnumHP is still in business or not. I haven't heard from GregZ in a long time but his website does seem to be up and running. I worked with ARP last fall to develop a stud kit as an ARP part number. They should have it available by now. 10 studs, 10 nuts, 10 washers. 6 shorter studs and 4 long ones. We checked all the lengths with various heads, rocker shaft hold downs, etc. I shot some pictures and had it all figured out for them so hopefully they go ahead and issue a part number. People are always asking for the darn kit.

Re: Anybody using the Hughes rocker shaft hold down kit [Re: AndyF] #266678 04/29/09 12:52 PM 04/29/09 12:52 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: People are always asking for the darn kit. Yep... I'm looking for one right now. I've e-mailed GregZ's Magnum HP account to see if he's still in business. Also, I checked ARP's latest online catalog and I can't find anything about rocker shaft studs or kits. That hardware must be buried somewhere in their catalog where it's not obvious.

Re: Anybody using the Hughes rocker shaft hold down kit [Re: BradH] #266679 04/29/09 01:15 PM 04/29/09 01:15 PM
Joined: Jan 2003 Posts: 31,082 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,082 Oregon	I don't know if ARP ever assigned a part number to the kit or not. I worked with them to get the correct stud dimensions, nuts and washers. They have all of the info, I just haven't followed up with them. They made up a couple of kits for the book I was writing and sent the kits to me for verification. Everything fit just fine and I used those stud kits on some of the dyno engines that I tested for the book. Ron on the sales line is the guy I worked with. If you call ARP he'll know if they ever set up a part number and started to stock the kits.

Re: Anybody using the Hughes rocker shaft hold down kit? [Re: Blakcharger440] #266680 04/29/09 08:26 PM 04/29/09 08:26 PM
Joined: Feb 2005 Posts: 4,321 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,321 Prospect, PA	Mine are from RAS and fit fine. Ran the studs in until they were finger tight. I don't know if Stealths require longer studs than Eddys

Re: Anybody using the Hughes rocker shaft hold down kit? [Re: BSB67] #266681 04/30/09 11:43 AM 04/30/09 11:43 AM
Joined: May 2004 Posts: 270 Washington, IL H Hughes enthusiast
Hughes enthusiast H Joined: May 2004 Posts: 270 Washington, IL	We are lengthening our studs a little in the next batch. 5197380-TheHughesLogofourth.jpg (120 downloads) www.hughesengines.com

Re: Anybody using the Hughes rocker shaft hold down kit? [Re: Hughes] #266682 04/30/09 12:22 PM 04/30/09 12:22 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: We are lengthening our studs a little in the next batch. Thats great... What are you gonna do for the people who have already bought your product...

Re: Anybody using the Hughes rocker shaft hold down kit [Re: BradH] #266683 04/30/09 02:14 PM 04/30/09 02:14 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	GregZ replied and said he's still running Magnum HP as an online business only (no shop now). The link to the ARP stud kit for standard heads is: http://www.magnumhp.com/catalog/product_info.php?cPath=36_37&products_id=313 He also lists a kit w/ the longer 4 studs (2 per head) required for Indy heads, but I don't have that link here.

Re: Anybody using the Hughes rocker shaft hold down kit? [Re: 1_WILD_RT] #266684 05/01/09 11:52 AM 05/01/09 11:52 AM
Joined: May 2004 Posts: 270 Washington, IL H Hughes enthusiast
Hughes enthusiast H Joined: May 2004 Posts: 270 Washington, IL	90% of the time the studs in the kit were fine. As you guys have already discussed, the studs should not be bottomed out in the heads. If you have a problem just give me a call and I will see what I can do. Kevin 5200151-TheHughesLogofourth.jpg (55 downloads) www.hughesengines.com

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