So I saved up and bought the Dulaney hub brackets and the SKF corvette racing hubs but have some issues or concerns.

Is there a difference between a 4th Gen LT1 and a 4th gen LS1 spindle in the area of where the hub mounts? Do both spindles have that chamfered area where the body of the hub goes through? The reason I am bring this up is when I trial fitted the Dulaney hub adapters, the lip on the back of the hub adapter did not even come close to engaging the main part of the spindle hole. The lip on the back of the hub adapter only engages in the chamfered area of the spindle hole which gives a rather loose fit and relies on the 4 hub mounting bolts for all its strength and its security. The lip on the adapter is 4 mm high. I am concerned that just the 4 mounting bolts is not strong enough without the lip engaging past the chamfered hole in the spindle or am I just being overly concerned. Are the 4 Arp mounting bolts more than strong for this?

Alan would have an answer for you, he just installed a set on the AIX car. For what it's worth, my LS1 spindles have the same chamfer, and a stock or replacement hub fits loose in the hole and is supported by the bolts.

Yes the stock hubs fit loose, but the tolerance is tight enough for the machine part of the hub (LIP) To fit hub centric for lack of a better term and able to support a load through the lip.
The below video I hope shows what I'm concerned about and trying to explain.

VIDEO https://flic.kr/p/p9vv32

These two photos shows the difference in contact area of the hub as it goes into the spindle arm.

DSCN1083 by rud98ss, on Flickr

Sweet you can lower you car with these adapters too!

What do you mean by that Stan?

Kens have the same amount of static play. My SWAG is that if the the center of the hub was to be load carrying, it would be an interference fit from GM, and it is not - even the OEM parts have a small amount of play. The bolt holes in the spindle are way larger than needed for the M10 bolts, so they cannot react any movement of the hub. Proper torque on the hub parts, and friction on the hub to spindle surface are what needs to keep them located. I'll tear down Kens soon - I want to replace the fasteners on the LF since it got hit. I'll look for evidence of fretting, which would indicate the friction is not adequate to hold them in place.

It was a joke. With all the play you could pushe the adapter up and its like a .002" drop spindle

Phew, I thought you noticed some major design flaw in this product. I got a little scared because I know you have a massive amount of engineering and fabrication knowledge.

My thinking was exactly the same as Alan's. The stock hub is supported by the bolts, not by the body of the hub. I figure with the proper torque, and the ARP hardware, there shouldn't be any issues.

I'll take that .002" drop.

Alan, yes I concur there is a minute amount of play with the OEM hub, but it alarmed me with the amount that was in the hub adapter as compared to the OEM hub. That bent wheel picture from Ken's car came off the LF? Thats a hell of a hit. That must say something about strength of the hub and how it's fastened.

@ Stan - Would you utilize this hub adapter on a 4th gen?

Roy can you share any more pictures? Thanks

Stan,
I could, but just need to know what you want.

Hub adaptors have now been on for about 4 months. Couldn't be any happier. Now lets see if these new SKF racing hubs will last longer than 1 season. For the price of the hubs I am hoping for about 4 or 5 seasons.
Time to catch the junk man to haul way 15 sets of camaro hubs.