Re: Hairline Crack in LM7 5.3 Block
went through a similar scenario years ago, Had a pro welder try to weld a hairline. After hours of attempts we never got it sealed. Naturally we cleaned it several times before hand. Tried jb over the welds- nope. For the additives some swear they will partially clog up radiator & other components. It has to go somewhere right? In the end drove it till it died & a buddy bought it & dropped in a diesel.
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