I�m building a lq4 to swap in my camaro need help choosing a cam I�ve messaged company�s and I�m not getting a response.

So far I have:
-2cc flat top pistons w/ valve reliefs
-706 heads
-ls6 intake manifold

will be a n/a street stripe build.

I was looking at BTR stage 4 cam but worry about ptv clearance. Also looking at BTR stage 2 cam. Any suggestions

Thank you

 

How much tolerance do you have for idle manners (or lack thereof)?

 

I don�t really know what you are asking haha. What rpm�s I want to idle at?

 

or are you asking if I can drive with a aggressive idol

 

Why go with 706 heads on a 6.0? I know they bump up compression some, but if you are wanting to put a big cam like the stage 4, they will definitely be the choke point with the bigger cubes and higher lift cam. I'd want to look at some higher flowing heads to take advantage of the cams you mentioned.
the stage 2 wouldn't have any clearance issues with the pistons you have. Probably the stage 4 wouldn't have issues either. I would clay the tip of the piston and check how piston to valve clearance you have it if you decide on that cam.

 

I forgot to mention the heads are ported. Do you think it will still not flow enough? Or maybe the stage 3 cam? Wont sacrifice as much torque down low?

 

706 heads port out about as well as 243/799's. As long as you put the 2.00" valves in you should be fine.

 

Ported with the bigger valves should be ok. Are the heads shaved at all? Any bump in static compression like shaved heads or thinner head gaskets will help with the drivability of the bigger cams. I'd think with the stage 3 cam, slightly thinner head gasket(if the heads arent shaved) you shouldn't have any piston to valve issues. I'd still suggest measuring before hand so you know for sure.

 

You shouldn’t have PTV issues since the pistons have valve reliefs.