[Chevelle-list] bypass hose big block

[Dale]

I've heard of people running without a bypass hose and claim no ill side
effects.  Think about it though, why did Chevrolet (or anyone else) put a
bypass hose on their engine?  Most small block I know about have a built-in
bypass from the water pump to the block to allow coolant to be circulated
until the thermostat opens although the L79 uses a bypass hose as well.
Until the thermostat opens up, coolant circulates through the engine via the
bypass hose.  Until the thermostat opens there's no place for the water to
go from the water pump.  Maybe drilling two or three holes in the thermostat
is a way around it if the bypass hose is removed and plugged.  I'm not an
engineer so I won't speculate.  If it is, fine.  I'd carry a spare 'stat
with holes already drilled in case the primary ever fails and you need a
quick replacement if you're just outside of Resume Speed, N.M. when/if
something goes awry.

 

Dale McIntosh

 <http://www.chevellecd.com> 1966/67 Chevelle Reference CDs

ACES #1709/TC GOLD #92 <http://www.chevellecd.com> 

 

  _____  

From: chevelle-list-bounces at chevelles.net
[mailto:chevelle-list-bounces at chevelles.net] On Behalf Of william yetman
Sent: Tuesday, March 13, 2007 6:44 PM
To: The Chevelle Mailing List
Subject: [Chevelle-list] bypass hose big block

 

Hello I am new to this list and have a question. I have a 454 in my 72
chevelle ss, I was thinking of removing the bypass hose from the water pump
to the manifold, just to clean the look of the motor up a little. All of the
big blocks I have seen with the bypass hose look distorted. What will happen
if I do remove it and is it recomended.

Any help is appreciated

Bill

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