Dont really know if it cools any better but
seems to me I read somewhere, the idea behind
having the connection to the radiator was
mostly done for automatic transmissions...It
would bring the transmission fluid up to a
stable operating temperature quicker by passing warmed coolant from the manifold
directly over the autotrans fluid cooler
inside the radiator...Looking at the service
manual for these trucks, 4x4 were done this
way....and I also think the bigblocks were
also routed the same. Although not certain.
I like the hose routed to the radiator
myself. I just think it looks cleaner.
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71 Chevy C-10 SWB Fleetside WAS:307w/3-on-the-tree NOW:350TBI/700R4/3.73
See it at
www.prismnet.com/~grzanich