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5.3 steam port?????

I drill and tap the water pump and run them back thru...I think it gives air a way out. Keeps from getting hot spots. Some say plug them but I would rather be safe than sorry
 
I ran my last one plugged and had no issues. I bled the system with it open, then plugged it. No issues.
 
Crappy pic but....
 

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Mine was like this. I hooked on to E1 in the pic then it all dumps into water pump
 

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Gm crate motors have a fitting tapped into the top of the water pump. I would think they would know where it goes.
 
I ran my plugged for over a year and it bit me during a race. I was 180 degrees then 240 in an instant. I would hook it up.
 
Ethann said:
I think this is the route ill go.

This won't actually work for me I don't think, due to the intake being lower on the LS1s down under, i guess this is more aimed at truck engines?
Danngit.
 

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