Apollo0526

iTrader: (3)

I was just wondering what sizes on cams everyone is running with any motor over 400 cid. I'm starting my build and need to think bout cam size. Its a 6.0L block stroked so i think the cid is right over 400. I did heads and cam on my stock ls1, the cam was a 238/244 .605/.610 on a 110 lsa. I didn't get to drive her much and now I'm building another motor and going bigger!!! From what i saw and how the car felt, i really liked that cam for that size motor, so looking for something similar for a bigger cid.

I appreciate any input, Thanks

Old SStroker

Here is a very driveable 402. It's an M6.

The Blue lines are AFR heads with a 242/248 cam.

The Red lines are Dart heads with an excellent Valve Job and a smaller cam. No, I can't tell you the cam specs.

Heads have a lot to do with how much cam you need, or don't need.

LSGunZ28

iTrader: (8)

the cam you had in your LS1, Im running in my 402.

beardWS6

iTrader: (1)

I have a 250 255 640 640 113 in my 408. You can see the numbers in my sig. This is with a nitous tune, stall for spray and a 12-bolt! I think with a M6 I would have gotten around 555-565rwhp! With a SD tune my car drives awsome!

Apollo0526

iTrader: (3)

How does it run? With that cam in my ls1, the idle was nice and choppy and it pulled pretty hard up top. Do you have any videos of the car at idle, or driving?

Thanks for everyones input, just trying to get a rough idea one what people are running in bigger motors.

xdanny510x

im running a 230/244/114lsa
drives great but keeps on bogging at stop lights and then when i put it on reverse lol

Fifedogg

iTrader: (15)

I will be using a MS3 cam in my 402 which is a 237/242 .603/.609lift 112LSA. I am using what most consider a medium size cam because I want to have good driveability and am using a stage 1 LS6 head. If you liked that size cam in your ls1 I'm sure you will want something in the high 240's low 250's. What heads will you be using? You should have a cam spec'd for your particular setup/Goals IMO.

89Formulaws6

iTrader: (52)

im running a 236 .610 .620 114

LSGunZ28

iTrader: (8)

Im sorry, my cam has yet to be installed in my 402... I havent drievn my car since january, I got the last of my parts(lifters and a couple of valves) a few days ago, when my friend has some spare time, were gonna put together the 402. put the motor back in my Z28, Ill break it in n let u know...

I have an idea from talking to ppl what kind of #s Ill make


with some light weight reduction, but getting a rollcage installed Ill be back at a stock weight hardtop m6 Z28 (2002)

I believe I should be making a ballapark area of over 470rwhp (hopefully) and none less.. if things go well I could make over 480rwhp, who knows...

I also think with slicks, 3.73 rearend (m6) I should still break in the 10s NA...

Ill keep you posted.. if I forget, remind me...

Apollo0526

iTrader: (3)

Anyone have any videos?

Fifedogg

iTrader: (15)

I have found quite a few 402 videos on youtube and most of the cars show there spec's. Also try streetfire.

89Formulaws6

iTrader: (52)

heres one my friend took, sounds good for 1100-1300 rpms it fluctuates the guy who tuned it eh didnt do so well

http://videos.streetfire.net/video/syns-408_166314.htm

DrkPhx

iTrader: (15)

Here is a idle clip on my old cam. It was a 244/250 .612 113 lsa and was the cam on the track run in my sig. The new cam is slightly bigger but ground on different lobes.

http://s155.photobucket.com/albums/s...t=MVI_0170.flv

firechicken_98

iTrader: (8)

I'm running the following set-up:

Comp Cams 244/244 .598/.598 114
TEA AFR Stage 3 heads

My numbers are 520rwhp/500rwtq

It's a very drivable set-up. The build was for a fast street car with plenty of power under the curve. I can drive the car in bumper to bumper Atlanta traffic with the AC on with no problems.