View Full Version : engine swap

03-27-2004, 12:33 AM
hey guys i have a question? I own a 85 325e looking to swap in a 325i engine. i found one with a blown head gasket. i don't have alot of money to do a full rebuild is there anything i should look out for before i buy the engine.

03-27-2004, 12:36 AM
you can put the "i" head on the eta.

03-27-2004, 12:44 AM
would i have more power than the eta and will i be able to rev to 6k

03-27-2004, 12:55 AM
you'd be best to have the cylinders honed to get rid of the ridges...or your rings might burn out quickly after a few good redlinings...higher rpms the piston travels a lil higher due to flexing....with the eta head,its not used to winding that high...but with headgasket problems comes overheating issues....pop the valve cover,if theres a lot of yellowing on the metal....walk away....but if its good,you can make a mean lil motor!!!*th-up*

03-27-2004, 01:26 AM
Felix.. explain that yellowing issue? isn't that just from heat and cheap oil?? and or oil aditives like Lucas film

Hovae30.. expect to spend about $3000 to do a proper rebuild on a BMW engine.. I did mine top to bottom, runs great and it's peace of mind :)

03-27-2004, 01:36 AM
I know eta's are strong engines is it the same for the 325i engine and what life span can be expected after blowing a head gasket