LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Is there a difference?

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Old Mar 24, 2006 | 04:24 PM
  #1  
Priest's Avatar
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Staging Lane
 
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From: Eastern NC
Default Is there a difference?

So GM rated the '93-'95 Z28s at 275bhp. Then the '96-'97 Z28s were rated at 285bhp, with the SS being rated at 305 (with the exclusion of the LT4, rated at 330). My question is: What was the difference between the '95 and '96 M6 Z28 to change the rating. Or was there a difference? My buddy has a '96 Z28 M6 that is bone stock and he thinks he is going to be faster than me. Not by much, but like a fender or so, he said. Personally, I think it'll be a driver's race. We won't get to run 'em anytime soon, because he can't drive his until his dad gives him permission (grades).

But were there any siginifcant differences in the LT1 between '95 and '96? Maybe a better intake manifold, less restricted exhaust, etc...
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Old Mar 24, 2006 | 05:14 PM
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96+ went to 2 cats instead of 1 for better emissions and flow.
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Old Mar 24, 2006 | 05:50 PM
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95 odb1 96 odb2

95s are cheaper to tune.
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