Issues with pre - 70's 318 in a 73 Duster

krazykuda said

Here's a piston dead stop tool to use to find TDC if you need one...

You can use it on a completely assembled engine, just remove #1 spark plug...

Summit Racing® Piston Stops SUM-900189

Click to expand...

However, I would recommend removing all the spark plugs when using the piston dead stop tool so you are not fighting the compression in the other cylinders when turning the engine over to find TDC...