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Old 04-04-2024, 11:20 PM
Jack Gifford's Avatar
Jack Gifford Jack Gifford is offline
formerly 'Pontiac Jack'
 
Join Date: Dec 2004
Location: Phelps, NY 14532
Posts: 10,182
Default Stopleak info

The aluminum head on my lakester's engine has some tiny leaks in the water jacket. I'm thinking of filling the head with water that contains a stopleak product, letting it sit, then drain the solution out prior to assembling and running the engine. But do these products require an elevated temperature to seal the leaks?

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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
  #2  
Old 04-05-2024, 12:04 AM
tom s tom s is offline
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Join Date: Jan 2000
Location: long beach ca usa
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Jack,on any new builds I drop a couple of the AC Delco stop leak pellets in the radiator.Tom

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