Water leaking from engine - 5.7 GXI-E

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
12,653
Glad it was finally fixed!
It was a bit of a mystery as I recall....
 

CaptnO

Petty Officer 2nd Class
Joined
Nov 19, 2021
Messages
104
Glad it was finally fixed!
It was a bit of a mystery as I recall....
Yea it was. Electrical problems will always do that.

I Hope now that this issue won't be as bad and hopefully just a simple plug to replace. although removing the engine isn't ideal lol.
 

alldodge

Moderator
Staff member
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Mar 8, 2009
Messages
42,054
The core plugs are standard GM SBC and any parts store will have them, just make sure they are brass or stainless
The motor has to come out first either way
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
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Jul 23, 2011
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49,537
so the plug might have saved the block.
Never going to happen on a Chevy small block. Ford, maybe

Those core plugs are to get core sand out of the block during the casting process

Any NAPA has a $14 brass core plug kit for SBCs.
 

Bondo

Moderator
Staff member
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Apr 17, 2002
Messages
70,953
The core plugs are standard GM SBC and any parts store will have them, just make sure they are brass or stainless
The motor has to come out first either way
Ayuh,..... They're suppose to live right behind the flywheel,....
 

itsathepete

Petty Officer 1st Class
Joined
May 23, 2018
Messages
300
Could someone help me locate the part number for those plugs? That would be greatly appreciated. The one's that I found was labeled under Core plug - Part No. 3852100 however I found a few different part #'s for core plugs so just want to make sure

MELLING MPE848BR
Full kit $18.77 from Rockauto
 
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