If your's measures 18 1/4", then how did they get 18"? I'll have to dig further into that with them Monday. Something they are telling me is not adding up, but I suspect my head distance is the main culprit.

Yeah, you would think the 600 box would give more clearance being its a smaller box. I don't know what Dynatech has done or is not doing. I'm going to try one more thing, which they suggested. I'm going to unbolt the drivers motor mount and lift the motor a few inches and try to bolt the box in and the header and then slowly lower the motor back down, hoping there won't be any clearance issues. Although, I know there will be. If they aren't able to come up with a solution, then it looks as though I will building a set of headers myself:mad:

I did some more checking and there is no reason for me to try and lift the drivers side of my engine to try and install the DSE box along with the Dynatech headers. I only have a fingers amount of clearance with the transmission to the transmission tunnel.

I was over on camaros.net and found where someone else was having this same issue, but with the older designed header. Dynatech revised the header and swapped headers with this particular poster giving them the revised header. They still had slight interference, but was able to mount both together.

I suspect a distance of 3/4" to 1" of clearance would be needed for me to clear the header and the DSE box. That's too much to try and gain in dimpling the tube. The tube would be nearly collapsed at that point. I'm out of ideas with these headers and do not see how Dynatech is going to be able to make this happen. Looks like I'm gonna have to try and pull a rabbit out of the hat and make a freaking set of headers:mad:

This weekend I have been out working on the car trying to get some stuff done. I gave up on my header issue for the moment due to the fact Dynatech headers do not fit my setup. I moved on to other issues like modifying the TH400 crossmember to fit my 4L60E trans. I cut the mount off to reposition it like I was told I could do. Well, that is a no go. I would have to cut the crossmember completely in half, doing some major modifcation to make it work. I don't want to do that because of the aesthetics of how it would look afterwards. I'll have to hunt for a already made crossmember to satisfy me. I wonder if one would bolt directly on with my luck?

Next, I was checking my front brake setup to see if it will fit. My rotor hats are too deep, so I get on Wilwoods site to see if I can get a shallower hat. Guess what? No go! Now, I have to scrap my front brake setup and order a bolt-on kit from Wilwood. I'm looking at the FN6LR front brake kit for my car.

To sum up my weekend, yesterday cost me around $200+ for a new crossmember that will bolt up and today cost me $1500+ for new front brakes.

Working on this car is costing more money then not working on it.

Gotta love it:woot:

Sounds like we got luck in common ha!

Did you look into G-Force Crossmembers? They are nice and I y
Think they have one for that setup.

If it weren't for bad luck, we wouldn't have any luck at all:cheers:

I looked at that cross member, but it looks quite hefty. I wonder what it weighs?

I'm starting to get pissed with Dynatech. They are basically blowing me off at this point. I'm not getting any communication from them now and their last communication was saying it was the motor mounts. We, both, came to the conclusion that motor mounts had nothing to do with why these aren't fitting.

I measured between the motor and steering box and got just over 2 inches between the two. They sent me a picture which appears to show a lot more clearance than 2 inches.

Anyone out there with a SBC, can I get a measurement from you all please?

I need to know how tall your engine pedestal with the motor mount is. Measure from the frame itself to the mounting pad on the motor. Also, tell me what stands and mounts you are using please. Thanks!

I'm showing mine driver's side and passenger side respectively.

I am using 69 Camaro GM 302/350 engine pedestals along with Prothane tall poly mounts.

Also, if you happen to have a DSE steering box, could you possibly measure the distance from the box to the head. I listed a picture showing the measurement I'm getting.

Thanks again everyone!

Dynatech and I have finally came to the conclusion that these headers are not going to fit my application. I do not know why these headers do not fit my application as they were specifically made to fit my application:(

Now, back to the drawing board. What headers now? I have to fit the DSE steering box and the Ridetech Truturn

good job
 

great job man...keep da pics coming:thumbsup:

Thanks boogyman:_paranoid