You evidently had one he*l of a big tree.

Watch carefully that Road Race oil pan if you attempt to torque bolts to recommended 15 pounds. You will severely dimple it,,depending on gasket you use.

I ended up building a girdle that encircles the pan of 1/8th thick stock steel that goes between pan and bolt heads. Highly recommended. I believe that someone is now selling a kit.

Do this right, you should not need any of the silicone sealers that inhibits the removal next time.