Tuxedo Posted March 31, 2017 Share Posted March 31, 2017 What is the into the block size of the port above the oil filter? 1/2" or 3/8" or...? Engine is a 396. Quote Link to comment Share on other sites More sharing options...
Paul Bell Posted April 1, 2017 Share Posted April 1, 2017 It's a 1/8 inch pipe thread. Quote Link to comment Share on other sites More sharing options...
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