Swapping from 170 to 225

Couple things you gotta do, check what year is the motor and car?

You gotta use your 170 oil pan (early abody).

Find out the year of the motor 67 and down has small crank diameter so you would use a 67 and down flywheel, which you already have.

1968 and up has a bigger crank diameter either way if you need it you can install the bearing Charlie S makes.

Also going from 170 to 225 your head pipe from you exhaust system will not work.