vettenuts

iTrader: (4)

I'm sorry, I am having a hard time reading your response because I can't stop looking at your AVATAR

raymond mckinney

iTrader: (4)

Thanks guys for the help and i'm sending word to my buddy.
On a side note i hope my 416 Ls3 makes some power with these heads, only time will tell.

SSP Racing

iTrader: (24)

Judging by alot of the setups you see on here, the LS3 intake only seems to have limiting effects on the stroked motors...seems like alot of the basic properly-cammed LS3's don't have any issues screaming up top.

BlownVette 2001

iTrader: (2)

Screaming to what top ?? Manifold chokes out at like 6300 RPM's.

I just bought a forged 416 bottom end and plan to top it off with some after market heads and either a fast or weiand manifold w/some sort of forced induction.

I'm looking for power up about 7K rpm's. I have time as my project is still in the body work stages but should be done soon and then i'll work on the drive train and motor. Hopefully by then there will be a few choices in LS3 manifolds.

N4cer

iTrader: (11)

I respect Louis's opinion more than most. But it still baffles me because my little 408 with Livernois 243s and LS6 intake ran the exact same times as a buddy's lightened 408 car with L92s and L76 intake.

RayZ06

iTrader: (1)

Check out this Video,Car is a 03 Z06 with a Scoggy Dickens 427 Short Block and a set of 235 Trick Flows and a Fast Intake.Car was converted by the Vette Doctors to a 4L60.This is NA.No Spray,No Boost
Trick Flows are amazing.

Ray T

http://s268.photobucket.com/albums/j...4RabbidZ06.flv

WKMCD

iTrader: (2)

EVERYONE knows the L92/LS3 heads don't work..

Hardtop

iTrader: (3)

Man that car rolls out. Very nice.

LivernoisMotorsports

iTrader: (1)

Most of the LS3 cars we have done to this point have been cam only.

We recently installed our stage 2 L92 camshaft, dual valve spring kit, Kook's LT headers and X-Pipe w/ cats and a Corsa catback on a customers 2008 M6 Corvette and it made right around 490 RWHP and driveability was excellent.

The specs on this cam are: 230/236 .590/.600 114 LSA



Regards,

Rick LeBlanc
Livernois Motorsports

99blancoSS

iTrader: (115)

Another option would be some Bret Bauer Darts , if anyone is interested in them they can pm me.

IH8FORD

iTrader: (6)

Cathedral ports = old technology l92/ls3/ls7 = new technology

WKMCD

iTrader: (2)

A very good option to consider. You can run a FAST and take the L76/LS3 intake out of the equation.

JayplaySS

iTrader: (15)

Thanks Rick. Wonder how that cam would run in an A6?

Louis

iTrader: (7)

Listen to what I say-

Smaller ports ( 225/235 ET/TFS/AFR/what ever head) will make more midrange and area under the curve. Im all about that.

The question posed was SWITCHING OUT 3500+ $ for a set of cathedral ports on an LS3.

Why would you spend 3500+ a cam kit? When you can SAVE 3500$ and run the cam only setup in the LS3, and still make great power?

Show me a 374 ALL bore motor with a mid 230s stick making 520/480 rwhp on pump gas and 11.4:1 CR.



Here is one with STOCK heads. CAM ONLY LS3, pulley, LTs, STOCK muffler, Cold air. No ported intake/TB.....



You cant argue with those numbers. Save the money on the heads/intake. Wouldnt you?

raymond mckinney

iTrader: (4)

I'm all with u guys on the money part. But my friend is saying this.
But the TFS heads flow better in the Mid-range and Top end flowing 340+cfm@.600,
and the exhaust flow is way better!
Its 2.08 vs. 2.16 valves,which the L92's seem big for 376 inches.
13.5 degree valve angle vs. 15 degree.
The TFS heads win on paper hands down.
Plus the fast 92mm flows much better than the L76 from what i've seen.

raymond mckinney

iTrader: (4)

It doesn't matter to me because my 416 Ls3 has L92's on it and there staying on here before i spend $3500 on a set of aftermarket heads. But so far i can't convince him other wise..

Louis

iTrader: (7)

Problem is, that is all on paper and in theory.

Im dealing with real paper, real world projects, real world tests.

I get paid, and I make a living doing things like this.

If someone wants to send me their TFS or ETP 225s/235s and a FAST, I will put it on one of the 4 or so LS3 cars I have here and publicly post the results.\

No one has to believe me or what I say, But right now LGM is one of, if not THE, premiere LS3 go-to guys.

I tried the LS7 4" Bore stuff too.... Thats neat... But its too big.

Louis

iTrader: (7)

Another thing I see- There are a LOT of guys that have 400+ cube motors not making NEAR the power/Tq we make with out the 4" crank.

Cam choice? touching the heads, and its going the wrong way?

Its VERY easy to screw up a set of LS3 heads.

I know we have a recipe, and it works. We test things before we add it in or offer it.

raymond mckinney

iTrader: (4)

I understand and i just hope to lead him into the right direction. I think i have him talked into doing a cam swap first and saving him some money. But u can lead a horse to water but u can't make it drink if u know what i mean.

WKMCD

iTrader: (2)

Then why do we continue this BS. It's his car. Let him do whatever the hell he wants..