Does the 1964 Triumph TR4 have power brakes?

Yes it has hydraulic brakes .It used the Triumph vanguard engine a wet liner block.They were quite easy to work on and used a 4 speed gear box with a 3 speed over drive .You could get crank rumble if revd hard its best not to go over 5,000 rpm.Check the car for rust and oil leaks also the suspension for wear .