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06-08-2005, 06:00 PM | #1 |
Senior Member
Join Date: Mar 2001
Location: Cedar Park, TX
Posts: 686
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Temperature sender on new style motor ???
For all you guys that have installed later model engines SBC-350, the temperature sending ports on the newer heads are smaller. What sending units work with new style heads and the original type gauge. THANKS!!!
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71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich |
06-08-2005, 07:14 PM | #2 |
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Join Date: Jan 2005
Location: CA
Posts: 5,982
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I have seen this question asked several times, and have yet to see an answer. For my truck I found a water neck (thermostat housing) from an early '80s car that had the right size threaded hole in the top of it for the temperature sender. It's not the ideal location for the sender, but it works.
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06-09-2005, 12:55 PM | #3 |
graphic designer
Join Date: May 2004
Location: Spokane, Washington
Posts: 841
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i asked this question a month or two ago, like said, not much in the way of answers. best bet is to drill out manifold and mount temp sender there.
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06-09-2005, 02:03 PM | #4 |
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Join Date: Aug 2004
Location: Overland Park, KS
Posts: 79
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I used an aftermarket GM intake and it had the correct size hole by the thermostat housing. I just re-located wiring to new location.
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06-09-2005, 02:25 PM | #5 |
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Join Date: Mar 2001
Location: Cedar Park, TX
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I have decided to just use an open fitting near the thermostat...will use the drivers side manifold for the temp-light. If I come up with anything else, I will post it...
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71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich |
06-09-2005, 02:35 PM | #6 | |
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Join Date: Jun 2005
Location: Sacramento CA
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Quote:
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Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck. |
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06-09-2005, 02:43 PM | #7 |
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Join Date: Jan 2005
Location: CA
Posts: 5,982
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If I remember correctly, the newer smaller senders have higher resistance than the older larger senders, so adding a resistor inline with a newer sender will make the situation worse. It might be possible to connect a resistor between the terminal of the sender and ground to lower the resistance, but we would need to know the specs of the new and old sensors in order to size the resistor correctly.
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06-13-2005, 02:27 AM | #8 |
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Location: Hilly Southern Indiana!
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68 K-10,79 K-10,80 C-30 57 chevy convertible 79 Z28 Last edited by 687980chevy; 06-13-2005 at 02:32 AM. |
06-13-2005, 02:29 AM | #9 |
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Join Date: Feb 2004
Location: Hilly Southern Indiana!
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A guy I know put a set of vortec's on. He drilled and tapped the driver side head (before head was on). I told him I'd be afraid to do that. He said it went real smooth.But he did say he was nervous drilling and tapping a brand new head!
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68 K-10,79 K-10,80 C-30 57 chevy convertible 79 Z28 |
06-13-2005, 10:35 AM | #10 |
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Join Date: Dec 2003
Location: Boston
Posts: 311
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I bought a new t-stat housing and sender from LMC...........the sender would not fit any of the holes in the Edlebrock RPM manifold or the vortec heads...........I actually had to try a couple housings, one would not match up w/ the rad hose correctly.
Last edited by 72c5; 06-13-2005 at 03:31 PM. |
06-13-2005, 03:27 PM | #11 |
Registered User
Join Date: Apr 2000
Location: Camillus, NY USA
Posts: 79
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I plugged the hole on my Vortec heads and mounted the temp sensor at the thermostat housing... works like a charm, inexpensive, and has 0 chance of screwing up your heads.
D
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1972 Chevy Cheyenne Super LWB Chevy Red/White with rally wheels. Not-so-Stock 350, A/T, A/C, tilt. Vroom, Vroom.... ===================== David Colbert dcolbert@twcny.rr.com Work hard, play harder! |
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