Generation III Internal Engine 1997-2006 LS1 | LS6
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Monster NA build

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Old Aug 22, 2006 | 12:17 PM
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Formulaguy's Avatar
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Default Monster NA build

Hey everyone, I'm making plans about my car, 99 Formula M6, and I am just looking for some opinions. Here is what I have/I am planning:

I have:
LS1 aftermarket lid
3:73 gears
12-bolt rear
Short-throw shifter
Dyno Tune
Custom cat-back (Y-pipe) w/Raction tips

Plans:
383 stroker kit (eagle or lunati) w/all forged internals of course
Texas speed M4 cam/ 205cc Mongoose heads
New oil pump
9" rear w/4.11 gears
32# fuel injectors
Functional Ram Air hood w/ws6 lower airbox
Carbon Driveshaft
90mm TB and FAST intake manifold
Pacesetter LT's w/ True Dual exhaust/SLP loudmouth resonators

I want to be able to drive this car on the street, but it won't be a DD or anything like that. A weekend stree/periodic strip fun car
I don't want any FI or N2O, just personal preference.
Let me know what you think...also if my head/cam combo is too tame for a 383, and what is the best compression to shoot for with no FI or N2O....
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Old Aug 22, 2006 | 12:18 PM
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I also have a Textralia Exo Skel twin plate clutch
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Old Aug 22, 2006 | 12:51 PM
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looks pretty good,you may gain a little more top end with the afr 225's but the 205's will throw down some sick midrange..should be a fun car
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Old Aug 22, 2006 | 01:40 PM
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+/-475rwhp
if ur gonna go N/A why not just go for a 4.06 bore iron 6.0 and 4 in strk. crank
to build 414 ci with some mean heads like the L92's?
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Old Aug 22, 2006 | 05:15 PM
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I'm a big proponent of working with what you've got...I have an aluminium LS1, so I'm going to make the most out of it...without FI or N2O
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Old Aug 22, 2006 | 06:01 PM
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If you are stuck on a 383 then check out Tony Mamo's post on his 383 dyno testing, very informative.

If you want the best 3.90 bore LS1 head made, then check out the TFS 215.
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Old Aug 22, 2006 | 06:54 PM
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Remember that an ls1 stroker will need to have the block clearanced for the rod bolts in most applications. I like the tfs heads as well with the 13.5 angle for improved flow.
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