ls9 cam

[askkmb]

Hi, does anyone recommend a ls9 cam on a naturally aspirated 4.8 silverado? The engine is stock as far as a cold air intake and exhaust. I heard somewhere that the ls9 cam is only good for forced induction but does anyone think i could add some ponies with that cam in my engine??? Thanks.

[98TransAmWs-6]

What year is your truck? Unless your 4.8 is a gen 4 it won't work as is because the cam sensor location and it is 4x instead of 2x I believe.

[askkmb]

Its a 2004 chevy silverado. And what do you mean by 2x and 4x?

[98TransAmWs-6]

It is just that the cam reluctor is different, which is how the computer knows where its current position is. That is the best way I can explain it.

Gen 4s cam don't have the cam sensor reluctor at the back of the cam so the only way to make it work is to swap in a gen 4 cam sprocket, front cover with cam sensor in it and lengthen the wiring harness for the sensor.

I would think you are better off swapping in a ls6 cam.

[askkmb]

Okay thanks. Any ideas where i could buy for a good price a ls6 cam? Doesnt matter if it's used.

[98TransAmWs-6]

Well here it is for $264 new:

http://sdparts.com/details/gm-factory-replacement-parts/12565308

And summit has it for $287 new:
http://m.summitracing.com/parts/nal-12565308

You could also try ebay. You will need ls6 valve springs which can be bought for between $60-80 new.

[askkmb]

Okay cool, thanks.