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| What Coolant Sensor To Use for '85 head on '68 block? https://www.slantsix.org/forum/viewtopic.php?t=63958 |
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| Author: | csheehy [ Fri Aug 16, 2019 7:53 pm ] |
| Post subject: | What Coolant Sensor To Use for '85 head on '68 block? |
I'm (temporarily) running a 1985 peanut head cylinder head on a 1968 barracuda. The coolant temperature sensor is much larger on the '85 head then it is on the '68. Does anyone know what part number I need for the correct temperature sensor that will work with the '68 Rallye gauges (non idiot light)? This could be a very obvious question, but I'm stumped. -Chris |
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| Author: | SlantSixDan [ Fri Aug 16, 2019 8:37 pm ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
Try this sender with this connector (yellow wire should go to your existing temp sender wire, black to ground). |
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| Author: | csheehy [ Sat Aug 17, 2019 6:58 am ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
I'll go that route if I have to Dan (TY for the quick reply!!!), but am hoping to find one that will appear more OE for the application - perhaps a one-wire solution. |
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| Author: | Badvert65 [ Sat Aug 17, 2019 9:09 am ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
Why not use a brass adapter and the 68 sender. Or, just plug the big hole and tap a new one for the 68 sender. |
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| Author: | csheehy [ Sat Aug 17, 2019 11:50 am ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
Great idea @badvert65 would you have a part number or link for that? |
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| Author: | Killer6 [ Sat Aug 17, 2019 1:42 pm ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
You need a pipe thread bushing, I'll be honest, don't recall what size they are, but maybe 1/4-1/8 NPT reducing bushing......whatever, they are not an uncommon item............ |
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| Author: | Rick Covalt [ Sat Aug 17, 2019 4:30 pm ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
Hardware store item. |
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| Author: | kesteb [ Sat Aug 17, 2019 7:00 pm ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
Your '68 sensor can go in the npt threaded hole above #1 exhaust port. The 2 larger npt threaded holes next to the thermometer can be blocked. |
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| Author: | csheehy [ Sun Aug 18, 2019 3:28 pm ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
@badvert65, the bushing idea was genius, I certainly wasn't seeing the forest through the trees. So as to help the next person who runs into this situation - the brass reducer bushing size that works is 3/8" M X 1/8" F, and was as close as my Ace Hardware Store for cheap. Thanks to all! -Chris @kesteb, the thread pitch isn't a match, couldn't do that. |
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| Author: | kesteb [ Mon Aug 19, 2019 6:56 pm ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
Funny, a 1/8-27 NPT tap works in that hole for every head that I have. So I don't see why yours would be different. But I am glad that you found a solution. |
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| Author: | slantzilla [ Mon Aug 19, 2019 10:10 pm ] |
| Post subject: | Re: What Coolant Sensor To Use for '85 head on '68 block? |
IIRC, I ran into the thread pitch thing on one of my heads, and it was straight thread, not pipe. |
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