# Two fbodies battling it out.

**URL:** https://forums.speedlife.net/t/two-fbodies-battling-it-out/259352
**Category:** Shift518 Automotive
**Created:** [July 10, 2011, 5:51pm UTC](https://forums.speedlife.net/t/two-fbodies-battling-it-out/259352 "2011-07-10T17:51:33Z")
**Posts on this page:** 1
**Showing post:** 11

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### Author: ![ScreaminRedZ](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/screaminredz/32/6674_2.png) [@ScreaminRedZ](https://forums.speedlife.net/u/ScreaminRedZ)
#### Post date: [July 11, 2011, 8:28am UTC](https://forums.speedlife.net/t/two-fbodies-battling-it-out/259352/11 "2011-07-11T08:28:54Z")

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> [@OFFICIAL: 2008 ELECTION THREAD](https://forums.speedlife.net/t/official-2008-election-thread/41192/355):
>
> “LS6” intake manifold and cam change were the only substantial differences. Casting #'s are different on the heads but the actual design is identical (just like 799 and 243 heads are the same). The 01+ LS1 uses the LQ4 cam which is actually SMALLER than the 98-00 cam.

The improvement in power on the 01/02 cars is probably due mostly to the LS6 intake.

> [@OFFICIAL: 2008 ELECTION THREAD](https://forums.speedlife.net/t/official-2008-election-thread/41192/355):
>
> For M6 cars the base axle is 3.23 with 3.42 as the performance option.

I’ve never seen or heard of a 6-Speed LS1 with anything other than a 3.42. I could be wrong, but I don’t think there were any other options.

> [@jdaniels"](#):
>
> but maybe that catted Y is choking it.

It’s possible. The high flow cats on my heads/cam Z28 lost me 8 rwhp vs off road pipes.

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