Nd4spd2

I am in the process of replacing my stock LS1 intake with an LS6 intake. The LS1 intake is curved up on the underside of the intake. The LS6 is flat on the underside. Will I have any interference problems with the knock sensor wiring or is there room under the intake to clear those? thanks

Daddyrama31

No, but you will have to either remove the coolant crossover tube and replace with the GM LS6 plugs or cut a notch at the bottom of the new LS6 intake.

Nd4spd2

Thanks - Yeah, someone just told me I need the proper coolant crossover and plugs to block the rear ones. Sounds like you block the rears and the new crossover just connects to each head on the front only. I'm guessing this won't cause any cooling problems? $80 worth of parts I didn't know I needed.

The bypass kit that they make to block coolant from running thru the throttle body, is that completely separate from this?

Nver2loud

Yes the TB bypass is completely seperate. You can get 2 ls6 tubes and route a hose to the front if you want to go that route. I made my own when i put an LS6 valley cover on mine, as the ls1 intake wouldnt fit anymore. Do you need help on this? what side of town are you on? If you wanted to be kinda ghetto, you can do what I did for free, as you dont see it...Do you have facebook? I have the pictures on there of what I did.

Nd4spd2

I'm actually in Stoughton now. Pretty close to you. Yes, I have FB. You can PM me the info. Any chance you would take a look at it tonight?

Nver2loud

Sent you a PM

Dark Syde

If I recall correctly, all LS1's came with LS6 intakes starting on the 2001.

Nver2loud

The OP said his intake that came off was curved, and he still has an ls1 coolant setup, so his vehicle cannot be an 01-up with the ls6 intake.

Nd4spd2

Correct, mine is a 2000 with curved bottom intake.

Nver2loud

Dam, I really want to come over and check out the 08...that thing is just sexy. Ive never driven a c6, the wife considered wanting me to get one, hard to argue with her, but now she wants to go old...like 40's ish.

Nd4spd2

Yeah, it's a sweet car, I love that thing. I have an 80 Vette too. I like all of them but they certainly get better as they get newer. I just drove the 08 to San Antonio Texas and hit some of Route 66 in Oklahoma. That was a couple weeks ago, put 2600+ miles on it.

Nver2loud

That sounds like a real nice road trip!! We took our 00 coupe m6 out to yellowstone, averaged just around 30mpg. In the hills it got bad and out west even getting 87 seemed hard to find and the car did not like it at all. I want to say I was getting around 23-24 with that gas.

SaberD

i would suggest cutting out the fins on the bottom of the ls6 manifold. it doesnt hurt anything and its free. there is also no benefit from the newer coolant tube design.

Nver2loud

I agree, I dont like the blocking of the rears..I would rather have everything setup to bleed any air possible

Nd4spd2

I would think those fins were put there for a reason, probably to strengthen the rigidity since it's made from plastic. I'd be a bit leary of doing that. The intake creaked enough just loosening the bolts when I removed it. I've already ordered the parts to make it like the 2001 up configuration. I checked my C6 last night and it doesn't look like it has any in the rear either. Thanks guys for chiming in on this, much appreciated.