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Thread: Heat riser tube
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post #1 of (permalink) Old 06-15-2009, 04:01 AM Thread Starter
Join Date: May 2003
Location: Othello, WA
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Heat riser tube

ok, when I got the 258 the previous owner had removed the tube and plugged the holes in the exhaust and intake manifolds. Well the plug he used came out of the exhaust manifold and now I need to either re plug it or replace the tube.
So is there a need for the tube being there besides warming the engine? The engine runs like a champ without it!
Your thoughts and anyone know the correct thread for the exhaust manifold side of the tube?


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