all juiced up

rich l has showed me a diff fitting might go with that one

ZQ8LS1

iTrader: (3)

What size to what size ??

LS1PUNK

iTrader: (5)

Im in as long as they are what u say they are.

Andy1

Can you assure us they're better than the ones that twist and break before they're adequately tight? I went through two such fittings even knowing of their tendancy to break.

Andy1

all juiced up

andy1 i will look in to that issue

all juiced up

zq8ls1- i will double check but i think its 12mm to whatever an aftermarket auto meter sender is

Rich L.

iTrader: (2)

Threads are 12mm-1.5. This is the adaptert I used for my 1/8" NPT SPA temperature sending unit.

http://www.speedwaymotors.com/LS1-Wa...pter,8195.html

The note there to "drill out the I.D. of the adapter to accept your sender" was necessary and worked well.

Rich

all juiced up

nice rich had a hard time locating these but you still have to drill and tap the inside

chuckd71

iTrader: (23)

You don't tap the inside do you? Don't you just open the lumen enough for the sender tip to stick through?

rickyzZ28

iTrader: (28)

I think the threads are 12mmx1.5 but I could be mistaken. Here is the adapter that I used.

LS1MCSS

iTrader: (18)

They are 12MM. I have cut a lot of senders down on my lathe and re-threaded for people.

ZQ8LS1

iTrader: (3)

I have a switch with 3/8 NPT...does anybody make a adapter for that ??

While we are on the subject...I know the coolant sensor goes in the drivers side front head,what goes in the passenger side rear head ?? A plug ??

I got my heads used & building a motor from scratch & what is the hole next to the cooling hole for ??

99VetteFRC

Drilled and tapped mine for old school mechanical guage.

ZQ8LS1

iTrader: (3)

Thank you for the pics.

My engine is out, so now is the time to deal with this.

66 BADBOY

iTrader: (2)

Not sure if I'm exactly on topic here, but if you are using an Autometer sender that comes with some of their gauge kits (which are too big to fit into their adapter......I'm assuming that is what you are referring to by saying you have to drill the 2277 adapter out) they make another sender that you can use with those gauges that fits directly into the adapter.

Autometer 2277 - 12x1.5 male x 1/8NPT -Adapter for LS -
Autometer 2259 - temp sender - short snout - fits the 2277 adapter
Autometer 2258 - temp sender - long snout - DOES NOT fit the 2277 adapter - (this one came with my gauges. I had to scrap it and buy the 2259 to make things fit).

Not sure if that helps.

edge04

iTrader: (9)

i just did the 2277 and 2259. that's for the short sweep autometer temp guage.

tfi racing

iTrader: (2)

Same here,drilled and tapped head for 3/8" NPT OBS truck sender,nothing to it as long as the engine is still out of the vehicle.I used the Equus adapter and a 1/8" NPT to 1/4 NPT fitting for the oil pressure.Even with buying the tap at the local tool store,I'm into it for about $25.

TomM

iTrader: (56)

Next time, screw the sender into the adapter first, then into the head....don't ask how I figured this out.....

That is correct, no tapping required.

T,

edge04

iTrader: (9)

anyone else experiencing this with these adapaters used in the rear passenger head?

When first starting my car from dead cold, my temps will go up to 210 and then drop. I assume that is when the t-stat is fully opened. But, it only drops to 195-200. If I now shut it down, when starting back up, it will only be at 190-195. Not a big difference but seems odd to me.