Aceshigh

Guys, I have a 1978 Camaro I stuffed an LS1 in with an LS1 radiator (Aftermarket - not aluminum)
and I have this little nipple on the drivers side of it at the
bottom that I have no idea what it's for. It's maybe 1/2" diameter.

Presently I have a rubber cover over it with a hose clamp.
That is obviously just a bandaid and now it's leaking.
Any idea's on how to plug this permanently??

I asked about welding but was told not an easy task because of the radiator material.

jsteele90

iTrader: (13)

is it the radiator petcock?

samson_420

iTrader: (1)

Maybe, the stocker drain is on the Passenger's side.

SOMbitch

iTrader: (8)

Sounds like it. Go to NAPA and buy one and screw it on there and see. Just 2-3 bucks. Didn't come with my aftermarket radiator.

Aceshigh

Not quite sure, it's on the drivers side.

It just look like a 1/2 in diameter short nipple sticking out of the bottom end (opposite side of lower radiator hose)
that you can slide a hose over and clamp for something, but I don't have
the faintest clue why it's there......

Never heard of a petcock on a radiator so I'm not sure....
Would a picture help??

9000th01ss

iTrader: (10)

It points straight down right? It's an alignment pin for the radiator mount.
It goes through a round rubber isolator on the stock application. It doesn't need to be plugged or capped because it shouldn't leak.

9000th01ss

iTrader: (10)

Heres a picture for everyone else I guess.
Not stock obviously but it has the same pin.

MrElectric03

iTrader: (71)

He said its on the drivers side though.

Does the nipple come off? Is it threaded? If it is then gget a plug from home depot, if it isnt than go to autozone or napa and get a hose cap...it looks like a 1" long peice of hose but is sealed on one end. Put that over it with a hose clamp and put some silicone on teh inside and let it sit and it shouldnt leak.

Aceshigh

Correct, and no it's not a verticle nipple, it's horizontal and it points towards the firewall and if it isn't capped it will drain the entire radiator. I don't have a pic handy but I figured the description is fairly basic.

Negative , it was cast in some mold , and it's not removable.
It's an aftermarket LS1 radiator mind you, for 2000-2002 Fbody's.

I have a hose cap on there now, but it's REALLY thin rubber and not sturdy enough.....I will go ask if they have something like what you're describing. Thanks.

SOMbitch

iTrader: (8)

DS not sure. Kinda missed in first post it was DS Petcock is PS for sure. Will look at mine tomorrow and post back if I figure out anything.

9000th01ss

iTrader: (10)

You have an LT1 (or universal LT and LS) radiator.
That hose nipple is for the bypass hose (#16) on an LT1.
If you use it on an LS1 it just gets capped.

Aceshigh

Yep, that's the one ^ ^ ^ Thanks.

Rafedial

iTrader: (7)

what is this for??? where can i find the part to fit this? Anyone got a picture of the radiator area in an LT1 car?

see pic.....

9000th01ss

iTrader: (10)

Thats for the coolant level sensor. Most parts stores have them. I'd try a pick your part junkyard if I just needed it to plug the hole, theres a clip too, not sure if a new radiator or the sensor comes with that clip.

OK it does have the clip, but $50 to plug a hole is a bit insane, why are you guys not just buying LS1 radiators? I know the LT1 radiator has a little more capacity but damn.
Plus some universal ones automatically come with the two holes you don't need.