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Ls1 Engine Build Mineral Spirits

Put the block on the floor with the front facing downward. Use a clean funnel and pour mineral spirits into the hole formerly occupied by the barbell restrictor. The main oil gallery runs all the way from here to the front of the engine, so mineral spirits will begin leaking out of any hole that isn't currently capped with an oil gallery plug (our machine shop had removed a few of ours). Also dump some mineral spirits down the passages that feed the valve lifters; they're located just above the camshaft bore.
LS1 Engine Build - My First Stroker

 Put the block on the floor with the front facing downward. Use a clean funnel and pour mineral spirits into the hole formerly occupied by the barbell restrictor. The main oil gallery runs all the way from here to the front of the engine, so mineral spirits will begin leaking out of any hole that isn't currently capped with an oil gallery plug (our machine shop had removed a few of ours). Also dump some mineral spirits down the passages that feed the valve lifters; they're located just above the camshaft bore.  View Related Article

 

 

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