http://www.classicparts.com/1947-59-Oil-Filter-Lines-6-Cylinder/productinfo/84-151/

http://secure.oldchevytrucks.com/searchprods.asp

http://www.chevsofthe40s.com/shop/s...p;dept=Truck&searchtype=FT&Go=Go

I think there would be no problem using a little Teflon tape (or dope/goop), but I have just tightened the brass fittings to the block.