So my Brodix heads don't have a hole drilled for the driver side temp sensor for the gauge, but it does have an extra hole in the front of the head that would act as another coolant crossover like in the rear. My question is, would this hole have enough coolant flow around it to give the temp sensor an accurate reading? If not my other option is in this thread.

https://www.camaroz28.com/forums/sho...d.php?t=808474

 

I'm not entirely sure the steam pipe fitting would give an accurate reading for the temp sensor. Have you thought about tapping the water pump for a 2nd sender?

 

I put a second coolant temp sensor in the steam line itself, using a brass tee. The reading matches all the other coolant temp readings (gauge and water pump sensor). Note that the steam pipe hose routing is different between 93-94 and 95-97.

http://www.injuneer.com/images/photo...ne/DualIAT.jpg

I can't think of any reason the temp at the front of the head would be any different than the hole on the side of the head between #1 and #3. The GM SAE paper on the LT1 engine design shows the differences in temperatures between various points in the engine, and the differences are generally only a couple degrees. The hot point is in the middle of the head where the two exhaust valves are right next to each other.

 

I wasn't sure if the sensor would read correctly from the steam vs being in actual coolant. Good to know it will work though.

 

There shouldn't be a constant flow of steam, and if there was the problem is at the back of the heads, which is dead-ended. That's where air bubbles will collect on fill up, and where there is no way out if a vapor bubble develops. He wants to use the "spare" connection on the front of the head, and that not dead-ended.