LT1-LT4 Modifications 1993-97 Gen II Small Block V8

engine coolant drain plug

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Old 02-04-2015, 07:04 PM
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Staging Lane
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Default engine coolant drain plug

I cannot find a new drain plug anywhere. I was wondering if instead could i use a 3/8 national pipe thread with sealant? Thank you.
Old 02-04-2015, 08:16 PM
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Look on the bottom edge of the radiator it should be on the bottom left or right side where the plastic and aluminum meet. It is a plastic peacock you twist out by hand or carefully with a vise grip if it is corroded badly. Should be fairly obvious if you lay under your car with a flashlight. Welcome
Old 02-04-2015, 08:25 PM
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I don't think he's stating he can't find its' location on the radiator,looks like he's trying to find a replacement.
GM # 52461346-common to many GM vehicles.
Dorman # 61136-available at Advance,Autozone,ORielly.
No,you can't use a pipe plug which has a taper thread,the drain valve has a straight thread.
Old 02-04-2015, 08:26 PM
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Not the drain **** for the radiator. It is on the actual engine block on the drivers side. Block drain plug i believe is the tech name.
Old 02-04-2015, 08:51 PM
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V6 or LT1 V8 ?
Old 02-04-2015, 09:03 PM
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LT1 V8 shows a GM#3889330 1/4-18 NPTF steel plug.
Old 02-04-2015, 11:16 PM
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Lt1, 350
Old 02-04-2015, 11:16 PM
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Thank you firstyear



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