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have a 96 vette lt1 motor in 84 pickup, all hooked up with reverse flow. my lower hose is always cold motor runs great never overheating is cold hose normal? heater and everything good.:doh:
 

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hate to sound dumb, where is rad.cap on reverse flow rad?????????
Where ever you put it , you don't state how you plumbed the system.
Are you using the stock pickup radiator or a Vette style radiator with the remote coolant bottle.

Reverse flow only affects the direction the coolant flows
 

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Are you talking about a reverse rotation water pump?
Reverse rotation pump only spins the opposite way , coolant flow through engine is still the same
Gen II LT1 is reverse flow through the block ; not the pump.
Coolant goes to heads first as opposed to the block first as with all Gen I SBC's
Also in stock LT1setup the coolant flow through the radiator is reversed
The thermo outlet goes to the bottom of the radiator and cool coolant goes back to engine from the top
Makes no difference .
My Gen 1 Camaro with a LT1 has the radiator hoses connected the conventional way; hot to top and cool from bottom
 
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