Vibration - Polyurethane Motor Mounts vs Rubber

[Broncobowsher]

The engine still have the vibration, it just isn't getting to the chassis now.
My guess, engine was rebuilt in the past. Was an econo rebuild, didn't get an internal balance job. Runs good, just not balanced. I've built those before. New pistons to match the over bore to the block. Just press them onto the rods and go. Engine runs fine. Rubber mounts do wonders. Other engines I built I had balanced. Those ran smooth with poly mounts.

 

[Hallboss]

The engine still have the vibration, it just isn't getting to the chassis now.
My guess, engine was rebuilt in the past. Was an econo rebuild, didn't get an internal balance job. Runs good, just not balanced. I've built those before. New pistons to match the over bore to the block. Just press them onto the rods and go. Engine runs fine. Rubber mounts do wonders. Other engines I built I had balanced. Those ran smooth with poly mounts.

Probably… I don’t have the history on the engine. All I know is its a 1991 302 Windsor, but runs strong and super clean internally.

 

[nvrstuk]

That was my thought and glad you got it back to being a pleasure to drive again! Congrats