Yes this is a GM, but the concept can apply to any engine. Saves getting dirt/ filings on pistons and the crank. Not all the pieces are pictured and I only set the stuff in place without the cap for the demo. Rod bolt to block clearance required.
Very cool.Here's some more of it, 14 years ago, looks a bunch cleaner. AND just for you @MOPAROFFICIAL , includes the 4.00 inch adaptor.
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