Originally posted by FootbrakeJim:
This is exactly why I started the thread searching for BBC Valve Covers with a removable fill cap on one side, and vac fitting on the other. I can't keep the moisture out of my top end unless I pull both valve covers after I load the car in the trailer. Which means 14 bolts of 2 different lengths, (long extension for 8 of them, no ext for the other 6), plus pulling 6 of the 8 plug wires off, between hot header tubes. (Not something I like doing after a long day at the track, in tight quarters, at 1, 2, or 3:00 AM!).
I run header evacs, but the hoses are connected to tall, Mopar-style breathers on my cast valve covers,which are not removable from the outside. Those breathers have way too much baffling, (presumably for oil control), and they just do not provide adequate venting of moisture vapors, even if I remove the hoses. Leaning it out and getting the coolant temp up does no good if you can't purge the water vapor out of the crankcase, it simply condenses on everything under the covers when it cools down.
(I suppose I should try removing both of the hoses, and use a shop-vac on one side, to suck the steam out). My plan with the new covers is to heat the car up good, load it up, then remove the fill cap and vac line from the valve covers. Maybe even add a tee fitting to vac hose with a large ball valve I can open up after car is loaded and shut down, (similar to a lean out setup). That way, in less than 30 seconds I can pull fill cap and open vent valve to air things out.
