McCleod has the scattershield now got one on my 67 nice piece
100% bolt on.
They also make the LT1 pressure plate bolts think they sell them through Summit too, $50/set Gm discontinued them awhile back
If you have the LS1 setup ARP makes the bolt in fact may have a set here
Similar to an ARP 35lbs as per their spec. Different than the factory throw away bolts. Youll love it.
On the scattershield if you run a 7 qt pan you may need to grind a slight arc in the lower rim to get your drain plug out takes a minute.
If you have tuned equal length headers and the pan you may have to loosen the header up to get your oil filter out ran into that last week. 1/4 in grinding on that lip should take care of that. Worth the piece of mind, they come with a nice block protector plate,also.