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Author Topic: rocker studs on twisted wedge heads  (Read 2239 times)
Fst Blk
Bill Watson
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« on: May 20, 2016, 08:00:58 pm »

Spinning this off to start a new discussion.

I used to have one but sold it after I was done with it.  BTW, my pushrods came out to be 8.1" or 8.15" with a 9.5" 351w and TW 205 heads.  I needed to order longer rocker studs to get enough thread engagement on the polylocs.

Good luck Bill.

I'm thinking I may have the same issue. I'm only getting about 3 full turns on the polylock before I'm at zero lash, if that. Can you point me to that thread and what was the part number on the studs JIC.

Is this an issue on all trickflow heads on a 351w? I have comp ultra golds.

Bill
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scienceguy
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« Reply #1 on: May 21, 2016, 01:51:51 pm »

I've OFTEN run into the problem of there being too few turns of threads.  The solution is longer rocker studs.  If they are 7/16", you can use Big Block Chevy.  I've also stacked a couple washers under the stud to make it stick up higher, which is a quick fix. 

Good Luck!
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Fst Blk
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« Reply #2 on: May 23, 2016, 01:43:10 pm »

Looks like I'm an idiot. I was trying to adjust them wrong. With the intake opening I was messing with the intake... instead of the exhaust and vice versa  Dissapointed I read on here where I was making mistake. This may be my first venture in to adjustable rockers/studs  Whistling

Bill
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85_GT
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« Reply #3 on: May 23, 2016, 07:55:13 pm »

If you wait for intake to close and say 1/4 turn extra, you'd be good to do both.  Intake is closed, and it will be a while before exhaust opens.
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« Reply #4 on: May 23, 2016, 09:52:27 pm »

I ordered a set of ARP 334-7202 labeled as a SB Chevy rocker stud kit (7/16").  They are .2" longer than the 3/8" studs that were on my TW 205's.  In my case that was the exact amount I was short on engagement with the polyloc.  I'm using Comp Ultra Gold rockers as well.
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