Reply to "Aluminum Water Pump Issue"

fastMember

David,

What you have is a block off plate which is used when you don't use the 351C specific thermostat that has the "hat" which seals the hole in the restrictor plate located under the thermostat.

The restrictor plate with no hole in it forces all the water out of the block all the time, instead of allowing the water in the block to warm up the engine quicker. The restrictor plate you have allows for the use of any thermostat that doesn't have the "hat" on the bottom.

The restrictor plate I use in my car does have a very small hole in it simply to allow for air to eascape the block when filling it up with anitfreeze but otherwise it is identical. Being that I live in the desert and it gets very hot, I run a 160 degree thermostat in mine.

Jim

1/30/109:41 AM

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