1968 Temperature sending Units

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Mar 26, 2015 | 02:15 PM

extechguy

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From: New York

1968 Temperature sending Units

I can no longer locate my sending unit in the intake manifold as it originally was and am forced to locate it in the cylinder head. Does anybody know if head sending unit has the same resistance to record accurate readings on my 1968 gauge? I also see that the head senders are a two wire unit where as mine has a single wire.
Thanks

Mar 26, 2015 | 02:21 PM

Peterbuilt

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From: mount holly NC

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Dosen't the temperature sender go into the head between #1 & #3 and connect with the same green wire?
https://docs.google.com/viewer?a=v&p...jI1NDMyY2I3YzQ

Mar 26, 2015 | 02:38 PM

65GGvert

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From: Kannapolis NC

Quote:

Originally Posted by Peterbuilt

Dosen't the temperature sender go into the head between #1 & #3 and connect with the same green wire?
https://docs.google.com/viewer?a=v&p...jI1NDMyY2I3YzQ

My 72 does.

Mar 26, 2015 | 03:47 PM

Alan 71

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From: Westminster Maryland

Hi ex,
I believe Willcox has done quite a bit of work with various temperature sending units and their calibration.
I'd give them a phone call and ask for some advice as to just what sender to buy.
Good Luck!
Regards,
Alan

Mar 26, 2015 | 05:18 PM

0Willcox Corvette

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68-71 Was a single wire bullet connector, 72-78 was a single wire spade connector. Both were the same thread size.

68-71 Sender

72-78 Sender

Mar 31, 2015 | 03:27 PM

extechguy

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Do both of these units fit in the smaller opening on the cylinder head or are they the larger thread designed for the intake manifold?

Mar 31, 2015 | 04:21 PM

Easy Mike

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From: Southbound

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Quote:

Originally Posted by extechguy

Do both of these units fit in the smaller opening on the cylinder head or are they the larger thread designed for the intake manifold?

The stock location for 68 was in the head. What manifold do you have?

Mar 31, 2015 | 05:29 PM

extechguy

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From: New York

Never really had an original engine in the car. I started life as a 400/427 by the time I got it there was an ailing 396 in it and I put a small block with fuelie heads and an edelbrock manifold so never really knew where the original belonged but guess it is going back to it's original location. Thanks