Did you check to be sure the plate behind the water pump is in good shape and not full of holes and corrosion? There are also the two rubber seals that the plate pushes against for a seal. If they are bad, or not there, it won't pump enough water through the block. If all that is fine, you might look for a smaller water pump pulley if the one you have is roughly the same size as the crank pulley. This alone, drastically helped a friend of mines 455 out in the SW heat above 100°.
__________________
Paul Carter
Carter Cryogenics
www.cartercryo.com
520-409-7236
Koerner Racing Engines
You killed it, We build it!
520-294-5758
64 GTO, under re-construction, 412 CID, also under construction.
87 S-10 Pickup, 321,000 miles
99Monte Carlo, 293,000 miles
86 Bronco, 218,000 miles
|