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Join Date: Aug 2006
Location: North Baltimore, Oh
Re: Ever use a REAR bypass hose for cooling?
If you run that intake without the bypass, run that 301 Stewart thermostat that Mike posted. With the bypass holes at the top of that cone in the center of the thermostat, I think the fluid flows past the spring allowing it to open faster. Plus, it will bleed the air out on the initial fill. It works well on my 502.
As far as the rear tubes, I really don't see how it would help. Just to keep you thinking: would it rob flow from the rest of the head if you installed them? I guess it wouldn't hurt to tap the manifold because you could always plug them if it doesn't work. I wouldn't install 1/2 npt maybe 3/8 or 1/4 npt. You wouldn't want a lot of flow.
'69 Chevelle SS (Back to NOT ON THE ROAD NOW!
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Engine parts: (Heads, cam & lifters from Lewis Racing Engines)
ZZ502 Short block
AFR 305 CNC 106cc Chambers 8002 springs
Bullet HR ADV Dur 295/297 238/242 @ .050 .680/.650-110 LSA-108 ICL Morel lifters
Holley Avenger MPFI
T-56 Magnum trans with hydraulic McLeod RST