The part number from year 1 for upper radiator hose for 26 inch radiator on a 70 Challenger 6 pack is SR103. However in their copy it is stated as no Penstar but has correct part numbers.

I have new incorrect one for a 22,inch radiator. Does have Penstar.

The question is: is a no Penstar hose the best that I will find. If so, I will order up,,,even at about 90 bucks,,,no good sale on right now.