You are wrong. All b-14s are low port, so are 94 b-13s. ALL other b-13s are high port. All sr20dets are high ports as well.SR20 91 SE-R said:correction b14 intakemanifolds are highport and b13 91-92 are lowport. and yes the sthe turbo swap has no problem with hitting the radiator fans. unless you change your exhaust manifold. but exact measurements i have no idea.