Get some head!
1991 325is head for sale: for M20B25 325i/s (88-91) OR M20B27 "E" to "IS" conversion
Rebuilt 1 year ago, very clean and in near perfect condition, includes head bolts (needs gaskets for intake/exhaust and coolant passages)
Intake manifold + studs, exhaust manifolds + studs and valve cover available if you need them.
$475 firm, local buyer please.
take a look