gokussx4

iTrader: (3)

I didn't realize this till well after picking up a set of ported heads but the heads can be swapped to either side of the engine. Both of the heads have the sensor port for the ets. What should I plug up the pass side with? I don't remember what my old 853 casting heads did for that or if they were interchangable.

Thanks for you help!

ND400

Buddy it's just a small plug with an allen key head. The same across every ls engine. Or if you have a spare, throw another coolant temp sensor in it to get bye

Damian

iTrader: (89)

Your other heads should have the plug. If not, take your coolant temp sensor out and go to the hardware store with it. Have them match up the threads with a plug. It's a pipe thread I believe.

Sales2@Texas-speed

iTrader: (5)

Or, to take the guess work out of it, grab GM part number 12553191

01ssreda4

iTrader: (96)

Its either a 1/8 or 1/4 NPT.

1SLwLS1

iTrader: (6)

Its M12 x 1.5 metric threads...

BlackScreaminMachine

iTrader: (17)

I would say aside from throwing a sensor in there. A Pipe fitting would be the alternative.

1SLwLS1

iTrader: (6)

How? Its metric M12 x 1.5 threads. The only pipe thread fitting is an adapter for 1/8" NPT. Autometer makes one, P/N 2277, then you could use a 1/8" NPT plug.