Ok, maybe im an idiot or im search impaired but I cant seem the find the answer to my qeustion.
I have a late 80's centurion and was wondering what size bottom bracket it is and what tool would I
need to remove it. Any help is appreciated because im stumped

The threading is undoubtedly English. If it's a cup-and-cone (very likely if it's the original ) you need a lock ring tool and a pin spanner to remove the adjustable (non-drive side) cup. You also need a fixed cup wrench for the drive side cup.

If it's a cartridge type (probably is if it's a replacement) you need a Park BBT-2 tool.

See the Park web site for detailed directions on both types.

The lock ring and adjustable cup can both be removed with a punch and hammer, just make sure you are trying to turn them the correct direction to losen them. If you have a big enough adjustable wrench, you can use that to remove the fixed cup.
Be fore warned, using a punch and hammer can casue damage to the lock ring and/or cup. Be gentle as posible.

The stock one on my '87 Lemans RS is 68x113, English thread cup-and-cone. I've never had much success using crescent wrenches to remove the fixed cups (I usually round it off and ding the paint), but Sheldon Brown's homebrew tool works quite a treat.