Where to put water temp gauge sender?
TECH Regular
Joined: Mar 2003
Posts: 449
Likes: 0
From: W.P.B
Re: Where to put water temp gauge sender? That plug is a M10*1.5 I think. I had to special order that adapter from autometer (M10*1.5 to 1/8 pipe thread) I installed this while my new heads were still off the car. Have fun.
Re: Where to put water temp gauge sender? No need to get to the #8 cylinder, which is damn near impossible by the way. Just remove the starter, and right above it in the block there is a plug. Use a 8mm head wrench to get it out. I believe the threads for it are M16x1.5. It's a million times easier than the other one. Make sure you use teflon tape and a crush washer when you put it in.
TECH Addict
Joined: Feb 2002
Posts: 2,031
Likes: 0
From: Bailey, Co
Re: Where to put water temp gauge sender?
No need to get to the #8 cylinder, which is damn near impossible by the way. Just remove the starter, and right above it in the block there is a plug. Use a 8mm head wrench to get it out. I believe the threads for it are M16x1.5. It's a million times easier than the other one. Make sure you use teflon tape and a crush washer when you put it in.
TECH Fanatic
Joined: Jun 2003
Posts: 1,070
Likes: 0
From: Further South than Hell
Re: Where to put water temp gauge sender? Yeap thats what I did (above starter). However the temp reading from the block might differ (minimaly less) from temp reading in heads (which is the what u want to keep an eye on).
But unless you are a harcore modder with outrageous amount of power, that would be negligeable.
But unless you are a harcore modder with outrageous amount of power, that would be negligeable.
Trending Topics
Re: Where to put water temp gauge sender? Who sells the fitting to adapt the thread in the block to the Cyberdyne sender thread, which is 1/8 pipe, I believe? Thanks. WJ.(the one above the starter is the thread I'm talking about). 
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo Re: Where to put water temp gauge sender? Here you go. These are very cheap($3.76) compared to more than $10 at Jegs and Summit. I got the M16x1.5 for that plug hole above the starter.
Re: Where to put water temp gauge sender? if you can get under the car, like i can, at a lube shop that one on the head is simple. 8mm hex socket and it pops right out, just seems to take forever to get the coolant level full again
Teching In
Joined: May 2004
Posts: 6
Likes: 0
From: las vegas
It works!!
Originally Posted by Ferocity02
No need to get to the #8 cylinder, which is damn near impossible by the way. Just remove the starter, and right above it in the block there is a plug. Use a 8mm head wrench to get it out. I believe the threads for it are M16x1.5. It's a million times easier than the other one. Make sure you use teflon tape and a crush washer when you put it in.
Glad to hear it! 
Originally Posted by tomsarge
I just finished putting my sending unit in that plug hole above the starter on my 99 T/A. I have an Autometer guage and sender, so I had to get an adapter to fit that hole. The adapter is an Autometer part (p/n 2268 metric adapter). The adapter comes with a crush washer. Easy to remove starter (only 2 bolts) and I just left my wires connected and supported the starter so I wouldn't have to disconnect the wires. The plug is right there. 8 mm hex head removes the plug, thread size is M16 x 1.5. Yeah! Now I have ACCURATE water temp!!
