1967 Yenko Clone

I am in the process of putting my motor in. Does any one have any ideas how to put a mech temp gauge in?. I am thinking about boring the block heater out.Does anyone know the size of the block heater?Any pictures would be appreciated. Thanks Wes

garys 68

iTrader: (1)

There is a threaded hex head plug on the drivers side back of the block, above the oil filter.
I drilled out the center and tapped it for the sender on my 68, 3/8" NPT, I think.
I flattened 2 opposite sides of the plugs flange so I could tighten it.
BTW, the head temp sensor mount would not be deep enough for my sender. So check that before tapping.

WYATT318MOPAR

iTrader: (28)

What about the plug in the head passenger side rear? That is the spot the factory sensor is at on the other head I was thinking about using that if I ever added a mechanical Temp gauge, don't really need to though as I have a 98 which reads actual temp in the cluster

bczee

iTrader: (12)

I used the passenger side head, it is the rear plug that I removed, I drilled and tap for 3/8" NPT for my water temp sender. There is not much more room for anything bigger at that location, I think some have tried, it just gets really close to the Manifold/header flange.

Some have used adapters, but this many also cause problems as it will then stick out away from the block and not flush.

forcd ind

iTrader: (7)

i used the S & P adapter on the pass side-i would prefer a steel one, but theres was alumn.

trsilvias13

iTrader: (1)

forcd ind

where did u get the adapter from? I typed in it in google, but not sure if I am using the right key words

garys 68

iTrader: (1)

I got mine from these guys, both water temp, and oil pressure.
http://www.speedwaymotors.com/LS-SER...TER,20928.html

subtlez28

iTrader: (15)

Thanks Gary!!

Good find, I just ordered them.

72ChevelleConv.LS1

iTrader: (5)

That is just like the one I used too. be carful. theh are thin.

luckyhenriksen

iTrader: (1)

Ya I think I heard of several of those breaking

50adrod

iTrader: (1)

whats the trick? would it be better to thread the sending unit in the adapter first.

Pop N Wood

iTrader: (1)

I drilled out a block heater plug and tapped it with a 1/2" NPT to adapt a Datsun temp sensor to the engine. The 1/2 tap fit inside the octogon hole for the allen head just perfectly.

The plug that came on my crate motor was solid brass, which made it easier to work with. I bought a second plug at a GM dealer and it was some type of steel.

Hard to imagine a mechanical temp sensor fitting in that little 1/8" threaded hole.