Originally posted by teejay@Nov 16 2005, 10:07 PM
hartge bought engine blocks without serials from BMW
they then serialise according to engine capacity, year,manufacture etc,etc,etc- ISO practise
these numbers differ from the bmw serial number on the engines
it has about 8 numbers, but i have yet to decifer what each of the number represents
H27 was based alot from both the 2.5 and 2.7 design with max airflow and hp from the 2.5 and torque/stroker from the 2.7 with the H27S having the individual throttle design
there are a few telltale signs on the cylinder head and lower block and head gasket but most important is the ecu, you need to open it up to see the hartge logo and serial- think it would be the same as the engine block!- hardest part is to convince the chop shop fella to let you disect the ecu.....good luck
BTW h27 had bigbore throttle bodies and tuned airlow meter