faethor

supposedly the LS2 is gonna come with an improved exhaust manifold/cat set up that would
1) eliminate the A.I.R. system by having higher-flow cats moved closer to the manifold. WOOT!
2) redesigned manifold for better flow as well as thinner wall (4cm to 3cm).
u guys think this would work for our measley LS1's? i just want a street legal, better (not best) flowing exhaust. i think this may be my perfect set-up!

greekss

good question... but isnt it a comopletly diff. block ?

faethor

i dunno. that's why i figured i'd ask!

jmd

iTrader: (4)

block should still be the same bore centres.

The question will be are you using them in a C5. And also whether they keep the same exhaust bolt pattern & port location. I don't see C6 stuff fitting an f-body or much else, and who knows what they're doing with the exhaust on the 2. :dunno:

I1ULUZ

iTrader: (1)

One pic I saw of a C6 LS2 had a bolt on top center of the exhaust port, my guess it will have 3 bolts for each port.

Krab

iTrader: (28)

I remember seeing the same thing, three bolts for each port on the LS2 block. Plus they're designed for a Y-body, so I doubt they would fit our cars.

JZ'sTA

iTrader: (23)

Just a suggestion why dont you buy Shorties or mac mid lengths?
Both should be fine for emissions.
Then buy a Exhaust system that works for emissions.
This wouold probally be cheeper anyways.

cueball

same engine, but bored out to 101.6mm, istead of 99mm,
and increased the compression ratio from 10.1:1 to 10.9:1,
and raised the redline from 6000 to 6500, put a greater lift cam,
and put freer flowing 90mm intake.
awsome engine

BadAndy

I'll take 2