98 bonneville ssei head question - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-17-2008, 12:17 PM   #1
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Default 98 bonneville ssei head question

i have a cracked head. do i need to replace it with a head off a supercharged motor or are the heads the same for a non supercharged one

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Old 09-17-2008, 07:08 PM   #2
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you must replace it with a head that is off a Supercharged 3.8 from 98+
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Old 09-18-2008, 07:46 AM   #3
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X2 on that. The 96/97 heads were slightly different and it wasn't for the better. 98+ is your friend.
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