Holroyd BBC Rocker Arms

mannymen · 04-17-2011, 04:50 PM

Are these the rocker arms that the Holroyd system uses?

http://cgi.ebay.com/ebaymotors/GEN-V...Q5fAccessories

Does anyone know how much his system costs? Can you buy just the 9/16ths studs and ball adjusters?

Thanks
Manny

Bob Pagano · 04-17-2011, 06:19 PM

Yes but they are modified, you just cant use them like that.

mannymen · 04-17-2011, 08:37 PM

Does anyone have pics on what has been modified or what specifically needs to be modified? Figured if it is something that I can do then l'll save myself the money and do it myself. Not paying someone for simple mods anymore.

james schaechter · 04-17-2011, 09:31 PM

I think you should call Clark.

Once you talk to him, you will realize that it is cheaper to have him make the stuff.

He has a good set up.

Mark Yacavone · 04-17-2011, 10:32 PM

Quote:

Originally Posted by mannymen

Does anyone have pics on what has been modified or what specifically needs to be modified? Figured if it is something that I can do then l'll save myself the money and do it myself. Not paying someone for simple mods anymore.

Oh no you don't . You can't weld your own rockers, but you CAN pay someone else to do it, apparently.
Maybe there IS a West Coast rule book after all.

james schaechter · 04-18-2011, 05:53 AM

Quote:

Originally Posted by Mark Yacavone

Oh no you don't . You can't weld your own rockers, but you CAN pay someone else to do it, apparently.
Maybe there IS a West Coast rule book after all.

Mark, there were some guys welding up the pushrod sides of their rockers and no one in tech had issues with that. The rocker had to stand a lot of heat in that process. The problem seemed to be that if the rocker got too brittle, it would break anyway.

Clark cuts out a section and welds a solid piece in place. I know he asked tech if it was ok and they said it was. I don't think that eliminates someone from doing the same on their own. It would be a difficult chore unless you had the equipment and time.

mannymen · 04-18-2011, 06:41 AM

Is the weak link the 7/16ths stud or the rocker arm?

Mark Yacavone · 04-19-2011, 01:39 PM

[QUOTE=james schaechter;253389]Mark, there were some guys welding up the pushrod sides of their rockers and no one in tech had issues with that. The rocker had to stand a lot of heat in that process. The problem seemed to be that if the rocker got too brittle, it would break anyway.

Jim, I was just wondering when it became legal to weld or customize stock rockers??
When we went to Indy in '04 with the 350 Buick, I had already split a couple of rockers at the shaft hole. I wonder how long we would have lasted in teardown if I had welded a bridge piece across the top of my rockers to strengthen them up?

Let's do a poll:

5 seconds

10 seconds

15 seconds

Larry Stewart Sr · 04-17-2011, 10:33 PM

What Holroyd sell for bigblock it works money well spent

Chad Rhodes · 04-17-2011, 11:59 PM

Quote:

Originally Posted by Larry Stewart Sr

What Holroyd sell for bigblock it works money well spent

agreed. You can't do the mods to the rockers for what he charges.

04-17-2011, 04:50 PM	#1
mannymen Senior Member Join Date: Apr 2003 Posts: 728 Likes: 5 Liked 13 Times in 7 Posts	Holroyd BBC Rocker Arms Are these the rocker arms that the Holroyd system uses? http://cgi.ebay.com/ebaymotors/GEN-V...Q5fAccessories Does anyone know how much his system costs? Can you buy just the 9/16ths studs and ball adjusters? Thanks Manny __________________ N/A

04-17-2011, 06:19 PM	#2
Bob Pagano VIP Member Join Date: Jun 2002 Location: New Holland, PA Mooresville,NC Posts: 1,163 Likes: 240 Liked 16 Times in 11 Posts	Re: Holroyd BBC Rocker Arms Yes but they are modified, you just cant use them like that. __________________ Bob Pagano A/SA

04-17-2011, 08:37 PM	#3
mannymen Senior Member Join Date: Apr 2003 Posts: 728 Likes: 5 Liked 13 Times in 7 Posts	Re: Holroyd BBC Rocker Arms Does anyone have pics on what has been modified or what specifically needs to be modified? Figured if it is something that I can do then l'll save myself the money and do it myself. Not paying someone for simple mods anymore. __________________ N/A

04-17-2011, 09:31 PM	#4
james schaechter VIP Member Join Date: Dec 2004 Location: Cumming GA Posts: 1,988 Likes: 1,289 Liked 1,428 Times in 296 Posts	Re: Holroyd BBC Rocker Arms I think you should call Clark. Once you talk to him, you will realize that it is cheaper to have him make the stuff. He has a good set up. __________________ James Schaechter 3163 STK

04-18-2011, 06:41 AM	#7
mannymen Senior Member Join Date: Apr 2003 Posts: 728 Likes: 5 Liked 13 Times in 7 Posts	Re: Holroyd BBC Rocker Arms Is the weak link the 7/16ths stud or the rocker arm? __________________ N/A

04-19-2011, 01:39 PM	#8
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,815 Likes: 2,903 Liked 5,121 Times in 1,952 Posts	Re: Holroyd BBC Rocker Arms [QUOTE=james schaechter;253389]Mark, there were some guys welding up the pushrod sides of their rockers and no one in tech had issues with that. The rocker had to stand a lot of heat in that process. The problem seemed to be that if the rocker got too brittle, it would break anyway. Jim, I was just wondering when it became legal to weld or customize stock rockers?? When we went to Indy in '04 with the 350 Buick, I had already split a couple of rockers at the shaft hole. I wonder how long we would have lasted in teardown if I had welded a bridge piece across the top of my rockers to strengthen them up? Let's do a poll: 5 seconds 10 seconds 15 seconds __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers

04-17-2011, 10:33 PM	#9
Larry Stewart Sr Junior Member Join Date: Oct 2007 Location: CLINTON MISSISSIPPI Posts: 52 Likes: 0 Liked 0 Times in 0 Posts	Re: Holroyd BBC Rocker Arms What Holroyd sell for bigblock it works money well spent