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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-23-2005, 01:16 AM   #11
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Quote:
Originally Posted by 2seater
Could be series II? They have a roller pivot only, standard rubbing type of valve operating tip. Rockers were a cast or powder metal construction, not a stamped steel rocker. Purchased from the local Buick dealer, definitely not aftermarket.
Yes those are series 2 rockers...

The 93-95 L27 had a pivot that had roller style bearings on the ends of the pivot... Actually a great way to reduce valvetrain friction without redesigning the whole rocker I guess GM figured why reinvent it when your going to have a totally redesigned 3800 series II in 95...lol

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Old 09-23-2005, 07:52 AM   #12
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anyone know of the */C 95 engine had s2 rollers or s1 rollers?
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Old 09-23-2005, 10:28 AM   #13
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Quote:
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anyone know of the */C 95 engine had s2 rollers or s1 rollers?
Series 1

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Old 09-25-2005, 04:04 PM   #14
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Quote:
Originally Posted by opensourceguy
drill them out... to 9/16" [please someone confirm this!]..
is this the correct size I need to drill them out to?
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Old 09-28-2005, 11:43 AM   #15
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Quote:
Originally Posted by maybe2fast
Quote:
Originally Posted by opensourceguy
drill them out... to 9/16" [please someone confirm this!]..
is this the correct size I need to drill them out to?
bump?
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Old 09-28-2005, 02:10 PM   #16
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No. It'* something different.

They need to fit a 5/16" stud.
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Old 09-29-2005, 01:05 PM   #17
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this is the correct size?
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Old 09-29-2005, 01:30 PM   #18
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Old 09-30-2005, 11:28 AM   #19
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thank you
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