metalman

iTrader: (3)

I have another cam question for you guys. I have decided to run a carb on my 6.0 for my chevelle for now. The bottom end is stock but I have had the 317's ported and bigger valves put in them. What cam would be good for a driver/strip car? I would appreciate any help you guys can offer.

Paul57

What intake are you going to use??
How much HP are you wanting to make??
What type of RPM range are you looking for??

Nitroused383

iTrader: (10)

What compression ratio are you running? You should try to get up around 11:1ish if you can.

JPH

iTrader: (2)

More info would be nice?

metalman

iTrader: (3)

I am running the factory pistons... they are dished. I have a victor Jr. intake running the msd 6010 ignition. The rear has 3.55 gears and it is a 67 chevelle. I would have to guess around 3750 on the weight. I am going to run a 4l80 tranny that will be fmv (no electronics....budget build). I have had port work already done to the heads (317's) and bigger valves. I was going to put a whipple on it but not enough hood clearance so I will wait and go turbo when I can build a forged bottom end. So.... cam, heads, and carbed will have to work for now. This is my first LS series motor so I dont really know how the cam profiles relate to the motor just yet.

Paul57

Since this is your first LS motor, I just wanted to let you know that you can run a larger converter than the traditional SBC. The LS motors make peak torque quite a bit higher in the power band...4000+ rpm. Sorry, I am a little off topic here but I wanted to let you know if you weren't aware of this already.

metalman

iTrader: (3)

I am seeing where everyone seems to be running large stalls! I would like to stay in the 3200 range because I do plan on driving it. If I could get around 380-400 rwhp I would be satisfied for now. That would be a nice cruiser/weekend warrior!

Nitroused383

iTrader: (10)

You really need some higher compression to take any advantadge of your setup. I don't think it is going to run that well since a victor jr intake doesn't produce much torque and is mostly for higher rpm. If you design a cam for the victor jr it will have very bad low end since you will not be able to get the dynamic compression ratio up at all with such low static compression ratio. Might run ok with something designed not to turn much rpm but to make ok torque with an early ivc to help build torque. That with a tight lsa will sound pretty ratty but it should still be fun.

Is this an LQ4 or LQ9? If it has dished pistons you have 9.57:1 compression ratio. A cam on xfi lobes like a 230/236 108 + 2 will put your dcr around 7.6. It wont be the end of the world as a lot of hard running cam only LS1's are around 7.6 DCR. Should pull to around 6500 rpm with the viccy jr im sure.