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Tech Forum : ENGINE SWAP FOR 1983 320i 4 CYL.

- BMW E21 Community
   - Tech Forum
      - ENGINE SWAP FOR 1983 320i 4 CYL.
jothoja   Posted Tuesday, Jul 22nd 5:03am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 16
   
detroit, mi usa
1983 320i
seriously considering an m20 for this car my questions is what year range should i be looking for? how big of an engine can fit without maximum modifications?? what about a v8??? any suggestions will be greatly appreciated

KenDanielson   Posted Tuesday, Jul 22nd 6:37am [Edit] [Quote] [IMS] [View car]
Junior Member
Post nr. 192

Petaluma CA
'82 320is, '78 320i
M20's were put in every year so that's easy.

How big? Get a tape measure and write some numbers down. I measured a BMW M62 and it will fit with a lot of work. A GM LSX engine will also fit easily. It all comes down to how much work you want to do and how much $$ you want to spend... BTW, getting an engine in there is really the easy part all the details like wiring, exhaust, trans and drive shaft interface is what takes the time and $$.

ken

jothoja   Posted Wednesday, Jul 23rd 8:13pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 17
   
detroit, mi usa
1983 320i
what about the bmw v8 they're putting in the m3's?

KenDanielson   Posted Thursday, Jul 24th 2:55am [Edit] [Quote] [IMS] [View car]
Junior Member
Post nr. 192

Petaluma CA
'82 320is, '78 320i
Never seen one and not interested in it so I can't help there.

ken

JJG323   Posted Thursday, Jul 24th 4:33am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1357
   
Reading MA USA
1979 BMW 323i
Just put an m20 in it, stroke it to 2.8 liters and if you want more power you can always turbo it.

MayanArch   Posted Thursday, Jul 24th 7:33pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1593
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
jothoja wrote:
what about the bmw v8 they're putting in the m3's?


Yes, but the new M3 engine bay is more like the old 5 series. This E21 chassis is much smaller.

You can do anything if you have the money and time. I guess you could even figure out a way to put a Rolls Royce jet engine in the body......but at some point it stops being an E21 and starts losing its balance and driveablility.

An M20 was meant to be in this chassis. You can do a 3.0L turbocharged with an m20. If you need more than that........spend your money on a downpayment for a new m3.


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