speedtigger

iTrader: (16)

Since I am going carbureted, I needed a place to put my 3/8" fan switch. We all know how small the coolant sensor hole is in the LSX heads so, the 3/8" fan switch will not fit. In looking for a place to mount my coolant fan switch I found this adapter by Howell. Tidy solution but one lousy price. $35 for a brass fitting? Really?

http://www.howellefi.com/customer/fa...h-adaptor.html

aknovaman

iTrader: (7)

Jegs/Summitt sells a alluminum upper radiator hose coupler that is tap'd for a temp sensor;

Project GatTagO

iTrader: (7)

How handy are you? I needed a place to put my stock sensor for the temp gauge when I did my RX7. The $35 fitting wasn't even an option at the time. I got a 12mm lug bolt. Put it in a drill press and drilled it all the way through with a small drill, then a bigger drill down the length of the lug head. Then tapped it for the stock sensor. The tapered lug bolt seats nicely against the head without any sealer or gasket. Worked like a charm.

Andrew

LS1MCSS

iTrader: (18)

https://ls1tech.com/forums/conversio...-approach.html

speedtigger

iTrader: (16)

That is pretty slick. However, I am just not a big fan of custom items that may need to be replaced. I would hate to be in the situation of having one of these sensor/switches die in a pinch and then not be able to replace it without making a custom piece. For wear items or items that could fail with time, I want to be able to go the auto parts store and buy a replacement.

Old Geezer

iTrader: (3)

Drill and tap the top of the wp..

Mike52

iTrader: (1)

In this case, do you really think an auto parts store is going to have the Howell adapter? Maybe you should invest $70 and order 2 of the brass fittings and have one as your back-up.

Mike

grif54

When I did my swap in a 92 Chevy truck I drilled out the hole in the back of the passenger side head. It has a plug init from the factory and you just pull it out, drill and tap with a pipe thread tap and you should be fine. It worked great for me, I used it to put the original temp sender from the truck in

speedtigger

iTrader: (16)

I think you missed my point Mike. A switch is a wear part. Or, more specifically, an item that can fail. An adapter is not a wear part. It is a solid piece of brass. But, now they want $6 shipping on top of the price of this adapter. I just can't justify $41 for a damn brass fitting.

I considered this, but I can't figure out how to keep all the aluminum shavings out of the cooling passages.

You know, I think I am going to do this. I did not want to modify any wearable parts, but this particular solution just seems to be the easiest and make the most sense. I can do this easily and for free.

LS1GMCTruck

iTrader: (2)

Guess you figured out how to keep the aluminum shavings out of the cooling passages.

speedtigger

iTrader: (16)

I would rather have it in the head where it belongs, but since the water pump is off the motor and far easier to clean out, it is just a simpler solution.