LS2 Engine Block Coolant Drain Plug
Thread Starter
Intermediate
Joined: Aug 2011
Posts: 35
Likes: 0
From: Ann Arbor MI
LS2 Engine Block Coolant Drain Plug
Hi folks.
im draining my C6’s engine coolant partly through the the driver side drain plug and I noticed every mention of it in the internet says it’s brass and the shop manual calls it a coolant heater and says it has a washer.
Yet mine is a plain steel plug with no washer.
I bought the car new so I know it’s stock.
Anyone have this experience? Or is my car unique? Also should I reuse it? Get a washer?
Thanks
im draining my C6’s engine coolant partly through the the driver side drain plug and I noticed every mention of it in the internet says it’s brass and the shop manual calls it a coolant heater and says it has a washer.
Yet mine is a plain steel plug with no washer.
I bought the car new so I know it’s stock.
Anyone have this experience? Or is my car unique? Also should I reuse it? Get a washer?
Thanks
Last edited by Corvettta; Jun 18, 2024 at 06:21 AM.
Melting Slicks
Joined: Jun 2014
Posts: 2,236
Likes: 498
From: NJ
Assuming you are draining coolant thru the block plug, it shouldn't matter what material is used. Unless of course, you are worried about galvanic reaction between dissimilar metals, then get an aluminum plug. And a coolant heater is usually placed in a freeze plug location , not a block drain. Are you sure you are looking at the right figure? I will look at my FSM.
Thread Starter
Intermediate
Joined: Aug 2011
Posts: 35
Likes: 0
From: Ann Arbor MI
Block drain
They are dissimilar metals regardless. The factory on mine is steel, all replacements are brass, and the factory manual mentions only a heater. The block is aluminum.
