I need to replace the rear heater hose that goes from the intake manifold to the heater core. I want to use the molded type. I see 2 variants currently available. Which is the closest to being the most accurate reproduction?

Molded Heater Hose, block to heater, 68-72 400-455 exc. A/C
or
1968-72 Oldsmobile Cutlass 442 W-30 455 400 Molded Heater Core Hose Non A/C OEM | eBay

 

AFAIK, the "GM" with Triangle on it wasn't on the original hose. I could be wrong. The font just looks off. Of course, I've witnessed that hose markings could and did differ over the years depending on the hose manufacturer.

OF is the correct code for the hose, however. As well as the part number is correct.