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Machining for 1.6 rockers

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Old Mar 20, 2004 | 07:21 PM
  #1  
imstress's Avatar
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Machining for 1.6 rockers

Hi all:

I am installing 1.6 roller tip rockers as part of my rebuild. I pulled the studs and took .3 of the stud boss, my new screw in studs have the hex. now I need to change the rod holes.

If I use guild plates can I just drill the holes in the heads bigger? if so what size? also, can I get away with the .3 I took off or will I have to take an additional .1 off the stud boss for the plates? I would hate to set the jig back up on my crapy mill.

I already have hardend rods and I have a set of summit guild plates I could use.

options please, other than the "you should be building a 350"
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Old Mar 20, 2004 | 09:35 PM
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From: Loveland, OH, US
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If you use guide plates, it would be a good idea to go ahead and take off another .1", especially if you're using rockers with Poly-Locks. If you're using some that use stock type lock nuts like the Comp 1400 series, it won't matter so much.

If you use guide plates you'll have to enlarge the holes from side to side; and if you use 1.6 rockers, you'll have to enlarge them toward the stud. You can just drill them, if you use a drill press to force the drill to not follow the existing hole. A ½" hole, centered on the inner radius of the existing hole, should do it.
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Old Mar 21, 2004 | 12:44 PM
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Thanks for the reply:

I am using the comp nuts. So I will keep the .3 of the stud boss and go with the summit raised guideplate I have. unless anyone has had problems with them? they are pretty cheap.

O.k. on the raised guideplates, should they drop down from the boss to the rods, or flip them over and they raise up from the boss? my guess is up, because they call the raised guideplates.
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Old Mar 21, 2004 | 03:44 PM
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ede's Avatar
ede
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i always remove .4 from the boss. i don't think .3 will work, but i've never tried it.
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Old Mar 22, 2004 | 11:23 AM
  #5  
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Well I will put a head on and assemble one of the rockers to see what it looks like.

Can any help me out as to which way the guide plates go on?
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Old Mar 22, 2004 | 11:39 AM
  #6  
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Raised up
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