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HighRev
03-21-2003, 03:25 AM
I'm going to swap a M50 motor into my 89 325i. I want to rebuild the entire engine with strong internals. I wanted to know if anyone could tell me of places to get performance pistons, connection rods, springs, valves, etc.... I'm look for really good performance parts, because I might turbo it in the future and I want it to be pretty strong. Thanks!*th-up*

thinair
03-21-2003, 12:52 PM
I guess you could do no wrong by trying Turner Motorsport (http://www.turnermotorsport.com) or Korman BMW (http://www.kormanfastbmw.com) for stuff like that.

Euro_E30
03-21-2003, 06:08 PM
Active Autowerkes.. is crazy they got crazy shit for your car... *smoke*

E30 Stu
03-22-2003, 03:59 PM
If you want strength and reliability, you need to use the factory M3 parts. You need a 3L or 3.2 crankshaft, which is forged, unlike the 2.5 crank. The 2.8 crank is also forged if you want to go that route. Use the stock 140mm rods. Get aftermarket forged 10.8:1 pistons.

For the head, use M3 conical springs, small retainers, small tappets, etc.

robert79
03-24-2003, 12:58 AM
Originally posted by E30 Stu
If you want strength and reliability, you need to use the factory M3 parts. You need a 3L or 3.2 crankshaft, which is forged, unlike the 2.5 crank. The 2.8 crank is also forged if you want to go that route. Use the stock 140mm rods. Get aftermarket forged 10.8:1 pistons.

For the head, use M3 conical springs, small retainers, small tappets, etc.

How much do these parts cost in the US/Canada?