Engine Mechanical problem
1974 GMC C1500 V8 Two Wheel Drive Automatic 800 miles

350 290HP crate motor. Installing a edelbrock intake, inadertantly dropped a small washer in the oil drain (aft rear drivers side) in valley of engine. Can't see the washer....any ideas how to get it out.. Removed oil pan in hopes of finding it there, no luck.

Thanks

Kevin