HP Difference? 97-00 vs 2001+

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Jan 27, 2009 | 08:09 PM

gleds

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From: San Antonio Texas

HP Difference? 97-00 vs 2001+

Just as the title says. Is there a significant difference in HP in 97-2001 year models verus 2001-2004? Anyone put them on a dyno to compare?

Jan 27, 2009 | 08:13 PM

road pilot

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5 hp

Jan 27, 2009 | 08:29 PM

borlavette

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From: Dearborn Mi

for 01 and up

Jan 27, 2009 | 08:34 PM

Bad97ta

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the ls6 intake is the difference of 5 hp

Jan 27, 2009 | 08:34 PM

doje

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Jan 27, 2009 | 08:46 PM

dobewillie

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Jan 27, 2009 | 10:29 PM

DefenderC5

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Quote:

Originally Posted by borlavette

for 01 and up

yup, but about 25 more ft/lbs of torque as well (with the manual trans). LS6 intake, different cam etc. It's not a deal breaker though, all years are good. A few mods or a cam swap would erase any difference between the two.

Jan 27, 2009 | 11:22 PM

rebelheart

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From: Lacombe Louisiana

Also the Z06 exhaust manifolds became standard on all LS1's and helped a bit!

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Jan 28, 2009 | 08:50 AM

gleds

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thanks for the replies! Interessting to know. I planned on long tubes, LS6 intake, and a cam so it looks like i will be taking care of all the short comings of my 97

Jan 28, 2009 | 11:37 AM

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peter pan

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Quote:

Originally Posted by gleds

thanks for the replies! Interessting to know. I planned on long tubes, LS6 intake, and a cam so it looks like i will be taking care of all the short comings of my 97

Slap on a blower and it cures all short comings of any model C5

Jan 28, 2009 | 11:39 AM

#11

warren s

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Jan 28, 2009 | 01:48 PM

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For coupe and vert - 5 hp difference. For Z06, the '01 had 385 hp and the '02-04 had 405 hp.

Jan 29, 2009 | 04:38 PM

#13

Wop1

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From: Golden Colorado

Quote:

Originally Posted by gleds

thanks for the replies! Interessting to know. I planned on long tubes, LS6 intake, and a cam so it looks like i will be taking care of all the short comings of my 97

All good choices, and if you want to make the most of all that, heads are in order, whether aftermarket or ported LS6, with a matching port job on the intake. A good tune and it will know your sox off.

Jan 29, 2009 | 07:50 PM

#14

borlavette

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From: Dearborn Mi

Quote:

Originally Posted by JDs00PewterCoupe

For coupe and vert - 5 hp difference. For Z06, the '01 had 385 hp and the '02-04 had 405 hp.

so what was the increase from the 01 compared to the 02-04 what did they do, what upgrades

Jan 29, 2009 | 11:11 PM

#15

C5XTASY

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From: Monticello MN

Quote:

Originally Posted by borlavette

so what was the increase from the 01 compared to the 02-04 what did they do, what upgrades

2001 Z06 cam was different than the 2002-2004 Z06 cam, and also the heads, or, at least the valves (sodium filled) and springs were different.
Also, the 2001-2004 blocks (same used for the LS6 and LS1) were modified for less pumping losses than the 1997-2000 blocks.
Another little known point of difference, in the LS1s, was that the 2000 cam was the most aggressive of any C5, 1997-2004. So, if you have a 2000 without precats, you may have one of the strongest stock C5s made.
Ed

Last edited by C5XTASY; Jan 29, 2009 at 11:17 PM.

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