Nowhereman

Thinking of swapping out my LS1 for an LS7. ($16k)
630 HP / 557 TQ
It could pass CA smog.
This is what is inside the LS7:
LS7 7.0L
Displacement: 427 Cubic Inches
Compression Ratio: 11.4:1 - 91-93 Octane
Bore x Stroke: 4.125 x 4.000
Rev Limit: 7200 RPM
LS7 Aluminum Block
Plateau Honed to 4.130
True Surfaced Deck
Blueprinted Short-Block
Scat 4.000 Forged Crankshaft
Scat H-Beam Forged Connecting Rods
ACL Rod and Crank Bearings
Custom Mahle Motorsports Pistons
Custom CNC LS7 Cylinder Heads
Ferrea LS7 Hollow Stem Intake Valves
Ferrea LS7 Hollow Stem Exhaust Valves
Titanium Retainers
Titanium Locks
Aluminum Valve Covers
Valve Cover Breathers
Remote Coil Locator Brackets
ARP Head Bolts
ARP Main Studs
Cometic Head Gaskets
Custom 3-Bolt Hydraulic Roller Cam
Hi Rev Hydraulic Roller Lifters
Manley 1 Piece Chrome Molly Pushrods
Manley Polished Double Valve Springs
M-90 Calibrated ECM
Engine Wiring Harness
Bosch EGO Sensors
LS7 Intake Manifold
GM 90mm DBW Throttle Body
Bosch Dead Headed Fuel Rail
Bosch LS7 Fuel Injectors
Mast 8 Layer Air Filter with IAT Bung
Following Sensors are included:
Temperature Sensor, Crankshaft Sensor, Camshaft Sensor, Oil Pressure Sensor, Engine Coolant Sensor, Engine Knock Sensor, MAP Sensor.
GM Ignition Coils
GM Spark Plugs
Moroso Plug Wires
GM Starter
GM Oil Filter
Melling High Volume Oil Pump

Racer001

iTrader: (15)

ok cool

Nowhereman

Just got a mail from the shop that turns these LS7s out.
They are not CA smog legal.
Ok, on to plan B what ever the Hell that is.
I'm just not going to be happy with this LS1 unless it's throwing out 600 plus and be street legal.

bad_408_vert

iTrader: (6)

sorry...but i can't take this thread seriously.
you are building a 7 liter, your motor will be worth more than most cars on roads everyday.
...Your biggest concern is smog?

ryanzcastro

iTrader: (1)

big power and CA legal is a wild dream

pimpjames

iTrader: (8)

I'm sure if you were going to spend 16K on a LS7 motor you can get a LS1 to 600RWHP easy.....

One option... Built bottom end and a Direct port Nitrous Kit.

Whistler

iTrader: (46)

It sounds like it will be a blast if you get it, however it's not exactly a "shoehorn" The LS1 and LS7 while much different in displacement and power, are dimensionally identical. With the exception of some sensors in different places, The LS7 is a direct bolt-in.

Nowhereman

Yes that's true about them both being identical in physical size.
My comment about shoe horning is related to all the other work that goes along with installing a 600 + HP engine into a car that normally has around 300 +.
Around here, we have a Lambo, a few new vettes, a real nice Cobra 427 and some others.
They are smog legal so, I should be able to find a solution to this LS1 performance increase.
I'm not a big fan of spray on HP for the street.
Maybe a nice turbo, cam and injectors can get me close.
Again, it needs to pass the CA bull ****.
I am serious though.
The thought of paying out 16k in coin for a street motor is bull **** too.

JD_AMG

Stock cars pass emissions (they are built for it), so it doesn't matter if theres a lambo, or Corvette around or not.
The Cobra 427 is likely registered as a historic car or kit car, and probably exempt from emissions, because it sure as hell is not passing them without cats. Either that or its register outside of cali, or the guy is slipping money under the table to make it pass.
You technically need to leave you cats in the stock location for it to be legal, so that means no long tube headers, which will cost you a decent amount of power. There is only so much you can do and remain truly legal. Search in the Gen III engine sections, there are a few threads about making power and being CA legal.
But if you really have 16+Gs to spend and want a big power CA legal steer car, spend it toward a C6 Z06...

Nowhereman

I'll have the 16k by November's end when I finish off a bike build for someone.
The Z06 thing is nice as I always wanted a vette but, I don't want anymore payments.
The only payment I have today is my house.
I feel free.

PontiacFan

iTrader: (104)

1) Move out of California.
2) Sell that car & simply buy something like those others that you mentioned that have 600hp.

Your plan of 600hp in that car & remaining smog legal in CA is a pipe-dream, ...

Nowhereman

You could be right.
I'm not moving from CA though for sometime if any. (aging parents to watch over)
It there's a way to do it, I'll find the way.
Still, this WS6 stays in the family.
If anyone has been through this, shoot me your ideas / outcomes.

JD_AMG

Dude seriously search like I suggested, you won't get much help in the firebird section since its a low traffic section, and this is not firebird specific, its engine specific, search the engine section like I said.
This took like 5 minutes:
https://ls1tech.com/forums/generatio...hp-budget.html
https://ls1tech.com/forums/generatio...egal-cali.html
https://ls1tech.com/forums/generatio...tock-cats.html
https://ls1tech.com/forums/generatio...ns-thread.html
https://ls1tech.com/forums/generatio...rolinians.html
https://ls1tech.com/forums/generatio...egal-cali.html

Nowhereman

Thanks JD, I will read up.

on1wheel01

yea wrong section would be nasty but to much $$$$ into it