Welp did some research and the bolts finally came in. Hopefully these should ease the install time on headers. Part number is arp 673-1002. They come in packs of 5 so you will need to buy 3 packs. Tried fitment on one of my mock up motors and these bolts do not bottom out. They are 25 mm in length so they thread in pretty deep. Will let you that are interested know how it goes after the install on the car.

 

I know this thread is old but any results or pics after install??

 

I know feel like and idiot for never taking pics for this. Nobody really ever asked as you can tell you were the first to reply on this 2 yr old thread. hahaha Well I hate to say it but i think the only pictures ever taken were on dannys motor (green goblin) but anyways heres what I was able to dig up. talk soon mike