ive got a stock 20b with good compression (prepping it to drop in my FD). since everything seems ok id love to get it in the car and drive it for awhile before i rebuild it, however there is the problem of the stock exhaust sleeves. so now im looking for a method to remove them while the motor is assembled. im sure there must be a way, but from what i can tell the roll pins are difficult to remove even with the housing on a work bench.... however where there is a will, someone usually finds a way. anyone have a method for extracting the pins with the motor together? also even if i can get them out, can i install new ones from the exhaust port side once the new sleeves are in? theres gotta be a way...... -heath

Its not possible within reason..