Quote:
Originally Posted by 71RS/SS396
It's a myth that the heater hose needs to be looped back to the pump if your deleting the heater. I run both of our cars with ports completely blocked with no issue.
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I build off road sand rails also and none of the engines that I do have any type of heater ports, either welded shut or drilled, tapped and plugged and never any issues
In the off road community, there are alot of quality engine builders/ suppliers (ie. CBM Motorsports, Turn Key, Redline, etc.) that practice the same method, even in their highend engines and sand rails (engines $20k+, sand rails $180k+)
I am sure that a stock application / system will produce less than acceptable results as compared to a custom aftermarket performance setup, like most of us run
http://www.custombuiltmotors.com/
Now back on topic for OP
I have had no issues running the VA heater valve in various installs
I have adopted the plumbing layout as done by Detroit Speed with regards to VA valve placement and converting the o-ring fittings to a "AN" style
here is a couple pics that I have saved and a video:
https://www.youtube.com/watch?v=283BYw2f0Qc
Hope this helps
Jeff