When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I am looking for locations to install a temp gauge sensor - none seem to be found. A thought I had was to use the port for the optional block heater but cannot find where GM put it. They used to be in the core plugs but these motors don't have one.
I might have found something.
On the left rear of the engine just above the oil filter is a removeable plug.
See if yours has that.
If not, try a radiator hose adapter.
Remove it and see what comes out.
If it's on the side of the block a bit above the filter, it still might gointo the water jacket. But I AM just speculating....
ICT Billet makes an adapter that I used to mount the temp sender in the coolant jacket. Unfortunately it had a hex size of 1-1/2" - I did not have a socket that big nor knew anyone close who does.
So I mounted it in the mill, calculating if I removed 0.075" per side my 34mm socket would work. 20 minutes later it was fitted up in the block and snugged down.
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.
7 Most Reliable High-Performance Engines GM Has Ever Built
Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Location of block heater 
