So after taking my head off to change the head gasket block has cracks in it so looking for alternatives to the m10 what motors are easy to swap Into a 1985 BMW 318i
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How much swapping do you want to do - eng/trans/diff? What ratio differential do you have? A 2.5 M20 changes over well to a 3.64 diff. (it is the weaker small 168mm case though) and is best of all worlds if you are on a budget. An 85 probably has the 3.91 though. If budget is not a concern the sky is the limit with all of the knowledge based here on R3V.
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Go with an M20. Don't bother with M42s. M50s are heavy and overrated.
IG @turbovarg
'91 318is, M20 turbo
[CoTM: 4-18]
'94 525iT slicktop, M50B30 + S362SX-E, 600WHP DD or bust - updated 3-17
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f20c
f20c seen one at pir, thing looked great under the hood. Killer gas mileage reliability and you'll have tons of room in the engine bay. Do arps head studs and tougher head gasket before you drop it in in case you decide to go turbo!!!! VTAC or if you have the money go ls1-9 but too much power to a coupe supposedly not a great idea... so I read lol, who knows though.
Last edited by jonnywadster; 10-15-2016, 12:09 AM.
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