How to tell the Difference? - Page 2 - 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 03-12-2004, 12:41 PM   #11
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I thought the black oil filler cap was on 92? I bought another 3800sc thinking it was a 93 but it had black oil filler cap and did not have roller rockers.but gave plenty ot put on ebay.. got full harness pcm and 2 sc'* and throttlebodies


Easy way to tell between 94/95 and earlier the ribs on the sc on the earlier go all the way down the side of the sc on the 94/95 70mm the sides of the sc is flat.
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Old 03-12-2004, 04:19 PM   #12
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I took a short sampling of engines with grey and black oil caps. Maybe it was a fluke.
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Old 03-12-2004, 04:43 PM   #13
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Here'* a 92/93 SC, from the back side. Notice ribs go all the way to the base, and the last bolt point on the left is rather thick.



Here'* a 94/95 SC, same angle. Ribs stop and the bolt point on the left is about half as thick.

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