Originally Posted by Full Force (Post 4529246)

What valve cobvers you run?

Originally Posted by Full Force (Post 4529246)

What valve cobvers you run?

Originally Posted by fbc25el (Post 4529253)

I have AFR315 heads. The part # for there stud girdle is 6210.

Originally Posted by ezstriper (Post 4529387)

I bought a comp one a while back, fit like crap, not sure the issue,was on dart conv. heads, bought a couple sets of the cheap ones on ebay and both worked great so ??

Originally Posted by MILD THUNDER (Post 4529422)

Im running the comp cams/rhs girdles on my Engine Quest heads.

Originally Posted by I'CE (Post 4529480)

https://youtu.be/_REQ1PUM0rY here is an old video, gives an idea

Originally Posted by Bawana (Post 4421016)

Looking to add stud girdles when I install my spring oilers, Wondering what you guys have used, that fit good with no binding. I talked to Brodix and they say the only ones to use are the two piece ones they and Bo Laws make. I really don't like the way those tighten to the polylocks, and I would think having a single plate would be better. They insist that the one piece girdles will not fit correct and pull or push on the studs and put undo stress on them.

The old Mec 1000SC had one piece girdles on them, and if memory serves me right, I think they used Crane?? I have never had a stud break since changing to the best ARP studs, but since I am going to add the oilers, I figured I would add girdles too. I know shaft rocker setups are better, but I am not wanting to pull all the motors to do that and the cost of the good ones times three does not appeal to me.

Originally Posted by mike tkach (Post 4421288)

the reason for useing a stud girdle is to support the studs in an attempt to stabilize the valve train.if you install a girdle that is designed for a different valve angle it will try to bend the rocker stud.we all know what happens when you attempt to bend a hardened stud,it is just a matter of time before it fails.

Originally Posted by ezstriper (Post 4530284)

this is one I have used twice, and as far as when needed, after talking to Bob M. at length I thinking starting at a 500hp would not be a bad idea..

http://www.ebay.com/itm/PROFORM-Big-...FXroAR&vxp=mtr

Originally Posted by ezstriper (Post 4530705)

I do not, but the fit perfect on std GM iron heads(running now) and used a set on std Darts a while back, both worked fine, now the adjuster nuts wont work on crane gold rockers without grinding, or getting thinner wall ones.

Originally Posted by adk61 (Post 4530273)

I have Jomar girdles for that application...[ATTACH=CONFIG]564874[/ATTACH][ATTACH=CONFIG]564875[/ATTACH] they sell for 329.00 per set and come complete with polylocks as seen

Originally Posted by ezstriper (Post 4530705)

I do not, but the fit perfect on std GM iron heads(running now) and used a set on std Darts a while back, both worked fine, now the adjuster nuts wont work on crane gold rockers without grinding, or getting thinner wall ones.

Originally Posted by MILD THUNDER (Post 4421259)

something to consider. When ordering a set of girdles, make sure to ask what size base the included polylocks have. Some are .550, some are .600. You want them to match the rockers you are running. If you order a set that comes with .550 locks, and need .600 locks, the locks themselves are kinda pricey.

Originally Posted by Mohavvalley (Post 4670715)

MT can you elaborate on this more, what exactly are we measuring to verify this?

When running these you put the regular poly locks on then the extended poly locks that go through the girdle go on top OR the extended poly locks replace the original poly locks?

Originally Posted by ezstriper (Post 4530284)

this is one I have used twice, and as far as when needed, after talking to Bob M. at length I thinking starting at a 500hp would not be a bad idea..

http://www.ebay.com/itm/PROFORM-Big-...FXroAR&vxp=mtr

Originally Posted by adk61 (Post 4696157)

many variables here, cam profile, length of valve/pushrod/geometry... the farther off the pedestal the rocker sits, the more deflection the stud sees at rpm, sometimes this is just where it needs to be for the working mechanism to be "happy" thus it becomes fundamental for the use of a girdle, or better yet a shaft rocker system if budget allows.
just my $.002

Originally Posted by MILD THUNDER (Post 4696159)

I measured deflection of the stud , just rolling the engine over by hand against spring pressure, it was eye opening. Now imagine the exhaust valve, that not only has to overcome spring pressure, but also has to overcome extremely high cylinder pressure to open.