Thermostat Housing truck 1966?

parzimmerdahl · 10-29-2009, 03:45 PM

I have a 1966 chevy truck C25 with a 327.
On this there´s a lower and a upper thermostat housing, and will fit two thermostats!? The lower has a connection to the waterpump.
Can someone tell me why the lower is nessessary??

see attachment (not my truck)

mudseeker · 10-29-2009, 03:47 PM

looks like a bypass?

parzimmerdahl · 10-29-2009, 03:52 PM

ok, can you tell what a bypass is good for?

88fivespd · 10-29-2009, 07:23 PM

Quote:

Originally Posted by parzimmerdahl

ok, can you tell what a bypass is good for?

The bypass allows the coolant to circulate throughout the block and of course the cylinder head area AND of course through the heater core in colder weather so your heater works faster, this all before the thermostat opens to allow the coolant to circulate through the radiator for extra cooling as needed.

parzimmerdahl · 10-30-2009, 04:23 AM

Ok, thanks for the answer, always a pleasure to talk to people who knows almost everything.

leolkfrm · 10-30-2009, 07:26 AM

on a diesel they do it so the water pump does not cavitate

10-29-2009, 03:45 PM	#1
parzimmerdahl Full Member Join Date: Jul 2009 Location: Sweden Posts: 10	Thermostat Housing truck 1966? I have a 1966 chevy truck C25 with a 327. On this there´s a lower and a upper thermostat housing, and will fit two thermostats!? The lower has a connection to the waterpump. Can someone tell me why the lower is nessessary?? see attachment (not my truck) Attached Thumbnails

10-29-2009, 03:47 PM	#2
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,376	looks like a bypass? __________________ i'd rather be hunting

10-30-2009, 07:26 AM	#6
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	on a diesel they do it so the water pump does not cavitate __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
removing my bell housing	uranium67	Ford Truck Forum	15	06-29-2009 05:58 PM
steering wheel housing	zachary00	Chevy Truck Forum	3	02-10-2009 02:26 PM
Wood ****** in my AC/Heater housing?	Diddly	GMC Truck Forum	9	07-02-2008 07:40 AM
1966 chevy c10 bbc swb fleetside	truckaddicted	Chevy Truck Forum	4	01-31-2007 10:45 AM
1966-1972 C-10	garyc	Introductions	0	01-18-2007 09:59 AM

10-29-2009, 03:52 PM	#3
parzimmerdahl Full Member Join Date: Jul 2009 Location: Sweden Posts: 10	ok, can you tell what a bypass is good for?

10-30-2009, 04:23 AM	#5
parzimmerdahl Full Member Join Date: Jul 2009 Location: Sweden Posts: 10	Ok, thanks for the answer, always a pleasure to talk to people who knows almost everything.