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575 Sci block drains

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Old 10-23-2017 | 08:13 PM
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Default 575 Sci block drains

In my 38 top gun have stock 575 sci. From as far as I can see there are block drains on the lower hoses off the water pump and on the bank two side of the motors. Left side if u are standing in front of them. Unless I am missing something there are no block drains on the cylinder 1 side of the blocks ?? Has anyone run into this ??
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Old 10-23-2017 | 08:57 PM
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On drain per side.
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Old 10-23-2017 | 09:17 PM
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There are 6 plugs, 1 on each header water rail, 1 on each side of the block, 1 on the reciculation pump hose and 1 on the fuel cooler underneath the front of the engine
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Old 10-24-2017 | 06:18 AM
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Will the fuel cooler plug drain the raw water pump and the rest of the coolers, or should one remove the bottom hose on the raw pump?
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Old 10-24-2017 | 06:29 AM
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Originally Posted by jiffy292
In my 38 top gun have stock 575 sci. From as far as I can see there are block drains on the lower hoses off the water pump and on the bank two side of the motors. Left side if u are standing in front of them. Unless I am missing something there are no block drains on the cylinder 1 side of the blocks ?? Has anyone run into this ??
mid block,may just have a pipe plug installed,just above oil pan rail.
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Old 10-24-2017 | 06:39 AM
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Originally Posted by sutphen 30
mid block,may just have a pipe plug installed,just above oil pan rail.
Or, as most Fountains were rigged- it may have a fitting with hose supplying water pressure gauge.
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Old 10-24-2017 | 11:42 AM
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ok thanks guys gona really have to wedge myself under there and find them
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Old 10-24-2017 | 02:48 PM
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02 Top Gun? So Gen 6 blocks? It is at the oil pan rail maybe one inch above it 14 in back from the front of the block face. It's behind the motor mount so it's going to be hard to reach from the front. If you feel that flat surface in front of the oil filter that the two plugs are in where the oil cooler goes on truck motors, it's about an inch and a half in front of the front of that flat surface. We are talking the non-starter side of the engine correct? The one on the oil filter side. It's a lot easier to find when it's sitting on an engine stand. Also, about an inch and a half to inch in front and an inch above that drain is a hole that I believe in knock sensor goes into. And it'll look like a drain fitting but it's not. I don't know if the Marine knock sensor is there this is what I see in a truck motor cuz I'm in the middle of putting together to put in a boat. But that's a blind hole it doesn't go into water.

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Old 10-24-2017 | 03:50 PM
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Will these help. My old 2001 540 blocks

Last edited by veloc410; 09-21-2018 at 11:00 AM.
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Old 10-24-2017 | 04:49 PM
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Just to clear up left side of engine is same as port side of engine and also 1,3,5 and 7. Regardlesss both left and right side of engine the drains should be to the rear 3" +/- of engine mount bottom bolt hole and just above pan rail as dnk mentioned. I've plumbed mine in the past with 6AN hose from each drain run up to the t-stat area with a quick disconnect. Makes it easy to flush out and drain blocks.
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