Quote Originally Posted by Bio248 View Post
coolant goes LIM > blower > throttle body > blower > LIM > rear head for those ports we are talking about sealing.

if you block them you have to open up the part under that side cover that you mentioned to even it out.
Well my LIM has a continuous coolant passage that runs under both coolant holes for the blower. Not sure why yours would be any different. So blocking mine off has no effect on coolant flow from the front to the back of the motor.