The SSExi project v3.0 - Page 7 - 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 05-02-2011, 09:01 AM   #61
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Add in that the pistons, rods and wrist pins are different and you get more of the picture. Boosted applications need more to handle the power. By dropping the compression and putting in stronger parts, GM did a pretty good job. At the same time the NA motor needed more power and therefore got a different CR to help it along.
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Old 05-03-2011, 03:27 AM   #62
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so Dan you using stock L26 or L67 pistons? or aftermarket?
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Old 05-03-2011, 08:05 AM   #63
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A stock L26 lower end with a L67 top end. Lots of people are doing this with great results. And the L26 is way newer and cheaper.
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Old 05-03-2011, 09:57 AM   #64
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Last L26 I found was 58K miles for $300. Sold the UIM and oil pan to help recoup some costs.
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Old 05-03-2011, 01:35 PM   #65
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thats great, cant wait to see the results

what numbers are you aiming for?
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Old 05-03-2011, 10:14 PM   #66
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Would like to see 350 to the wheels.
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Old 05-03-2011, 10:21 PM   #67
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shouldnt be too hard considering what you already have for mods
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Old 05-03-2011, 10:35 PM   #68
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I'd like 400, but not going to get that without heads.
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Old 05-04-2011, 01:50 AM   #69
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you're not running stock tranny, are you?
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Old 05-04-2011, 07:59 AM   #70
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No, I have a 3000 stall torque converter, hardened input shaft and 4th gear shaft and 3.29 gears
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