M20 swap into 84 318i

[318idude]

alright from what I undertand my car has a m10 which is a SOHC 1.8, and the m20 was put in newer 318s was a DOHC version of that. How hard would it be to do a swap? And would I be able to find one of these motors for cheap? What came in the M3?

Thanx Alot

KT

 

[318idude]

Could I put a M20 head on a M10???

 

[318idude]

wooops guys i screwed up bigtime..... I meant to put m40 instead of m20

 

[318idude]

i want whatever that DOHC L4 is that came in the newer E30 318i

 

[junglestylz]

That is the M40 for the 318I, and the M42 for the 1991 BMW 318is. In order to do that swap you would be dealing with a complete wiring and computer replacement, The engine itself, and possibly some other pieces and parts. The M42 and M40 engines runn off a Motronic system, while yours is runn off of a Jetronic. If I was gonna spend the time and money I would just do an M20 or possibly a M50/52. The only problem with that is redoing the suspension in the front to deal with the heavier engine.