LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

NSA roller rocker - help on part reference

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Old Jun 28, 2010 | 12:58 AM
  #1  
Sporty-X's Avatar
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From: New Caledonia
NSA roller rocker - help on part reference

Hello everyone,

i decided to go to 7/16 NSA roller and need to know if i'm right on parts :

* guide-plates : GMPP 14011051
* studs : ARP 200-7202
* rockers : Comp Ultra pro mag (i beleive pro mag are discontinued) 1605-16

are all those parts matching together ?


Pierre
Old Jun 28, 2010 | 11:54 AM
  #2  
red94chicken's Avatar
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From: rhinebeck, ny
guide-plates : GMPP 14011051:
This hardened steel guideplate is used with aluminum Bow Tie V6/90º cylinder heads with screw-in rocker arm studs. Technical Notes: Use on cylinders #1, 2, 5 and 6. Grind guideplate to clear valve cover hold-down bolts. This guideplate is identified by the stamped number "05."

why not get aftermarket guideplates. i would assume by the tech notes that those heads have offset rocker studs requiring those specific plates and probably not the correct part for LE2's that you have listed in your sig.
Old Jun 28, 2010 | 12:00 PM
  #3  
shoebox's Avatar
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From: Little Rock, AR
Originally Posted by red94chicken
guide-plates : GMPP 14011051:
This hardened steel guideplate is used with aluminum Bow Tie V6/90º cylinder heads with screw-in rocker arm studs. Technical Notes: Use on cylinders #1, 2, 5 and 6. Grind guideplate to clear valve cover hold-down bolts. This guideplate is identified by the stamped number "05."

why not get aftermarket guideplates. i would assume by the tech notes that those heads have offset rocker studs requiring those specific plates and probably not the correct part for LE2's that you have listed in your sig.
Forget the note. They work. Tons of people use them. Check them for hardness.

Comp 1605-16 are the 7/16 rockers.
Old Jun 28, 2010 | 09:22 PM
  #4  
Sporty-X's Avatar
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From: New Caledonia
thanks for replies.

I will order those parts along with my Magnum pushrods.

Are the ARP studs the right lenght ?

Also any feeback about those new Ultra pro mag rockers ?
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