Coolant drain ??

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Aug 18, 2005 | 09:19 PM

99NassauFRC

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Coolant drain ??

Does the LS1 block have "water jacket drain plugs' like older Chevy small blocks? I'm getting ready to pull heads for replacement, and don't want coolant all over the place.

Aug 18, 2005 | 10:30 PM

Grimes

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From: Northern NJ

yeah, you can unscrew plugs on the sides of the block - they are near the motor mounts. also, you can drain a decent bit from the radiator petcock.

Aug 18, 2005 | 11:28 PM

Ferocity02

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There is a plug above the starter than will drain out quite a bit of coolant.

Aug 19, 2005 | 06:30 AM