Thanks to Bruce, Jim, Ed, David and Don for the great advice.
(I tried to organize the steps from everyone in this email so other listers
would have a good single point reference if struggeling with a heat problem.)
Jim, the details on my engine - bored .040 over and stroked with a 300 crank
for a displacement of 265 c.u. or 4.3 liter. It has a CR of 10:1, is running a
little rich, timing is set for 10 degrees advanced at idle. Runs great-
constant pull from idle to 6500, no pinging or such. The only timing/jetting
indication issue I have is under hard decelleration the engine pops a little
out of the exhause (rich or dwell - I think?)
As many mentioned the need to vent from under the hood, I do have louvers in
the hood just over the back of the exhaust (Yes, block huggers Jim,) plus 3
inch holes in the fenders directly below the louvers into the wheel wells.
I will fabricate the duct for the lower radiator, but need to wait until I get
a better front facia. (The air dam I have is NOT vented at all.) I will get
either the LE front spoiler or the air dam with the cutout for the radiator.
(Looking on EBAY now).
Another good point is that I may need a top seal as well, I will check that
clearance and install one if required.
I will cut my coolant ratio down to around 25% and add a water wetter, The
thermostat change to 180 from 160 confuses me but your experience and the
actual results are good enough for me - so I will do this also (second to last
step , next to last step being change out the radiator, after all these other
changes as a last step, if required, I will add the oil cooler)
I will implement all of these recommendations and believe I will resolve my
heat issues soon.
Thanks again for all the great advice and I hope to see you soon at one of the
upcoming meets.
Bill Zenkus
Email: mgb_zenkus@yahoo.com
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