Series 1 and series 2 engines completely different..? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-23-2003, 10:01 PM   #11
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Coupler is going bad.
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Old 10-23-2003, 10:44 PM   #12
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Quote:
Originally Posted by willwren
Series III (if the bonneville ever sees it) 260 horse.
I heard that this will never happen with the v8 in the mix (trying to convince my dad he wants one, not working too well) is this right?
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Old 10-24-2003, 02:46 AM   #13
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Nope. The Series 3 L67 is still an Eaton M90 on a 3800 V6. The bonneville won't see it. The GXP is getting the 4.4 liter 'shortstar'.
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Old 10-29-2003, 03:21 PM   #14
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Quote:
Originally Posted by willwren
Nope. The Series 3 L67 is still an Eaton M90 on a 3800 V6. The bonneville won't see it. The GXP is getting the 4.4 liter 'shortstar'.
The M112 is interchangeable with that, though, correct?
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Old 10-29-2003, 11:00 PM   #15
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also the valve config. is different on the series 2
on the series 1, you have 2 intake valve together per bank. on the series 2, the go IEIEIE instead of EIEIIE
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Old 10-29-2003, 11:19 PM   #16
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hahaha that thing about the sc coupler making a noise is hillarious considering the guy that had mine before me said he replaced the whole sc because it was making a noise and would be harder to sell that way. he said it wasnt broke, he just replaced it to try to get rid of it. i bought it from a dealer, but not a very smart one obviously.
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Old 10-29-2003, 11:24 PM   #17
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something else that will cause a rattle at idle is the balancer. mine started to rattle at idle and i figured it was the coupler, it took me a week to to get parts to replace it and just to make sure before i did it, i checked everything again, here the rubber on the balancer was broken and was causing it to rattle.. GM redesigned it with a narrower rubber in it now.
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