C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

School me on polylocks please

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Old Aug 24, 2010 | 02:31 PM
  #21  
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Originally Posted by JAKE
Second, a 7/16" poly lock will not screw on to a 3/8" stud and if you try it, the vavle train will fail.
That would be stupid I never said I would do that.

Originally Posted by JAKE
Third, your rocker arms determine all the rest. They determine what studs you need and what poly-locks you need.
That is the one I'm having a hard time with. Because as I see it. the rocker needs a .600 X 1.2 poly lock to do the job why does the stud size matter.
I swear I'm not trying to annoy you

Originally Posted by JAKE
Why beat this to death? Just buy ARP 7/16" studs and Scorpion 7/16" poly-locks and be done with it.
Jake
I'm on a budget that's why I went with used. I do plan on buying the studs but cheaper locks if I can find them. I already have a call in to Summit.
Thanks for all your help Jake. Sorry for being a pain in the butt.
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Old Aug 24, 2010 | 02:45 PM
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Originally Posted by ch@0s
That would be stupid I never said I would do that.


That is the one I'm having a hard time with. Because as I see it. the rocker needs a .600 X 1.2 poly lock to do the job why does the stud size matter.
I swear I'm not trying to annoy you


I'm on a budget that's why I went with used. I do plan on buying the studs but cheaper locks if I can find them. I already have a call in to Summit.
Thanks for all your help Jake. Sorry for being a pain in the butt.
What you're not grasping is the fit of the rocker trunnion over the stud. A 7/16" rocker on a 3/8" stud will be extremely and fatally loose. During operation the rocker will flop around, wear/bind and fail taking with it who knows what other parts.

The correct fit between the rocker trunnion and stud is critical. Either too loose or too tight are bad news for your engine.

Jake
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Old Aug 24, 2010 | 02:49 PM
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Originally Posted by JAKE
What you're not grasping is the fit of the rocker trunnion over the stud. A 7/16" rocker on a 3/8" stud will be extremely and fatally loose. During operation the rocker will flop around, wear/bind and fail taking with it who knows what other parts.

The correct fit between the rocker trunnion and stud is critical. Either too loose or too tight are bad news for your engine.

Jake
ok, Now I see.. Thanks for the info
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Old Aug 24, 2010 | 03:24 PM
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Found some ARP for $59

ARP3008246 - ARP Poly-Lock Kit For Aluminum Rocker Arms And 7/16"-20 Threads, 1.200" Long, .600" Body Diameter, Pack Of 16
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Old Aug 24, 2010 | 05:37 PM
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This was a hard one to keep up with.

1. Rocker has to fit on the stud.
2. Keeper/poly-lock has to fit on the stud threads/size.
3. Poly-locks have to fit inside the rockers recesed opening if there is one.
4. poly lock has to fit the keepers threads, and reach the top of the stud to lock it in place.

Change to a different stud size, all this **** is useless, and you need a full new set of rockers/polylocks.
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Old Aug 24, 2010 | 07:11 PM
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Originally Posted by ch@0s
Thanks for the advice bill but I think I'm just going to buy a C5.

Your rockers wont fit a C5.

Dont go doing something like that now.
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Old Aug 24, 2010 | 07:30 PM
  #27  
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Originally Posted by bill mcdonald

Your rockers wont fit a C5.

Dont go doing something like that now.
you sniped me.. I deleted that, I didn't want to be disowned.
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Old Aug 24, 2010 | 11:28 PM
  #28  
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Originally Posted by ch@0s
Found some ARP for $59

ARP3008246 - ARP Poly-Lock Kit For Aluminum Rocker Arms And 7/16"-20 Threads, 1.200" Long, .600" Body Diameter, Pack Of 16
I went shopping for you. I found a set on SUMMIT for $50 but they won't ship til 9/29, which is suspect is too long a wait.

You could call FLATLANDERRACING (number should be on their website) and probably get at set a lot sooner. FLATLANDER is a BIG Scorpion dealer; where I bought my two sets. Best price I found at the time at $222


UPDATE 603-378-0090 You can Thank me later, LOL

Jake

Last edited by JAKE; Aug 25, 2010 at 03:41 PM.
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Old Aug 25, 2010 | 09:10 AM
  #29  
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Originally Posted by JAKE
I went sopping for you. I found a set on SuMMIT for $50 but they won't ship til 9/29, which is suspect is too long a wait.

You could call FLATLANDERRACING (number should be on their website) and probably get at set a lot sooner. FLATLANDER is a BIG Scorpion dealer; where I bought my two sets. Best price I found at the time at $222


UPDATE 603-378-0090 You can Thank me later, LOL

Jake
Is it later yet?
Thanks Jake
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Old Aug 25, 2010 | 10:06 AM
  #30  
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your box is full
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Old Aug 25, 2010 | 11:39 AM
  #31  
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Originally Posted by cuisinartvette
your box is full
Quit sending me so many messages JK
Cleaned out the cobwebs
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Old Aug 25, 2010 | 03:42 PM
  #32  
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Originally Posted by ch@0s
Is it later yet?
Thanks Jake
LOL. Not a problem; we're all in this together.

Jake
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