I have done alot of searching on this but can't find exactly what I am wanting to know. Can I either just totally remove these lines and plug the holes on the rear of the heads(doubt it), or run a line from one head to the other only, OR does it have to go from one head then the other then where??? I bought a motor and trans from a 94 police B-body and it did not come with a pressurized or any coolant tank so I am not sure how to terminate this line. Does anyone have a coolant system diagram for the B or F body and or any suggestions on how to run these lines. The original line is a bit rusty/iffy and I wanted to replace it with original or something else that will work. Cosmetics are not a concern at this point but best possible performance is.This is going into an 80 Camaro and will remain fairly stock for now.Thanks in advance

Dave S

 

The steam line??? If so you have to have it.

 

Ok so how do I route it after the passenger side head? Not sure exactly how this went I am unfamiliar with the LT1 (but not the SBC) and did not pull this motor. It was delivered to me without an overflow or pressurized tank or whatever it went to. What is the proper way to run this line? The line went to the throttle body but I want to eliminate the TB heat as this vehicle will only be driven in summertime. Where does the coolant go after it leaves the TB because the other nipple on the TB(output) did not have a hose on it.

 

Straight back to the radiator

 

Ok I only have the stock 229 radiator right now,what radiator would work both with the chassis and the motor? I would like one of the ones with the factory oil cooler built in ,but not sure what year would retrofit into the 80'.

 

In the 93-94's, the coolant line from the back of the heads is routed directly to a connection on the radiator. Has nothing to do with the throttle body. Supposedly, there is a "vapor separator" inside the radiator. Its the 95-97 F-Body LT1's that route the rear head coolant line to the throttle body first. That line is required to remove air and steam from the back of the heads.

Shoebox has F-Body routing diagrams:

http://shbox.com/1/93-94_hoses.jpg

http://shbox.com/1/heater_hoses_93-94.jpg

http://shbox.com/1/95-97_hoses.jpg

http://shbox.com/1/heater_hoses.jpg