I would use grade 8 as sometimes the heat and expansion/contraction makes them tough to remove, and you do not want to break a bolt. Use anti-seize on the bolts.

http://www.ramairrestoration.com/catalog...8681e464570b47f

I would buy an OEM or reproduction angled oil filter adaptor. That way, you do not need to relocate the sending unit....And it looks better and original. The oil filter relocation kits are ugly, cumbersome and look like, well, IMO crap.

http://www.ramairrestoration.com/catalog...3b2213dbe4fc28f