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| | | Forums66 Topics128,034 Posts1,055,544 Members48,425 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2002 Posts: 866 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 866 | Does it matter which heater hose goes to the intake manifold or water pump. 53 chevy 1/2 ton 350 crate engine. | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | not really - might be marginally more efficient if the water in goes to the highest heater fitting and the return goes to the lower one, but not so you'd notice  Bill | | | | | Joined: Oct 2003 Posts: 445 Shop Shark | | Shop Shark Joined: Oct 2003 Posts: 445 | Won,t hurt if you change them around every few years.This reverse flushes the heater core and keeps it clean 
dan-pa
| | | | | Joined: Jan 2002 Posts: 866 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 866 | | | |
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