m20 or m42

[tinnaM42]

ive got a m42 is in my cabby should i stick with it or put a m20 in it i am buying 1 tommoro. getting cold feet i think.

[eko]

M50

[tinnaM42]

haha its not as easy tho

[eko]

haha its not as easy tho

Depends who`s doing it and choice of parts used

[tinnaM42]

wot u reckon it would cost?

[eko]

wot u reckon it would cost?

well you already have an M42 gearbox so may aswell use that.
Engine will be about £250 on average then you probably have another couple of hundred quid in engine mounts,exhaust manifold,servo etc.

[ImysE30]

M30

[leeparkes]

Answer to the question id go for the M20
If i was in your shoes id go for M50,
as eko said you already have the correct g/box and its not all that difficult!

[asmith88]

m20

[Cook318IS]

m50b25 ftw! although otherwise i would say m20b25 - makes better noises than m42!

[daimlerman]

wot u reckon it would cost?

well you already have an M42 gearbox so may aswell use that.
Engine will be about £250 on average then you probably have another couple of hundred quid in engine mounts,exhaust manifold,servo etc.

Exhaust is your biggest problem,if you are handy and good with a welder you can make your own. The custom built one is very good but also very expensive.

[JungleGus]

m50

m20 if you have to

[audi3333]

M20 sounds smooth even at even at idle

[rix313]

I want your M42 if its going ;)

[baybee]

Ive got an m20 on mine and im contemplating gettin an m50. As im no expert im wondering
would it be a straight forward swap or would i need to change gearbox, wiring loom and get a
custom manifold etc. would i need custom mountings aswell and is it worth swapping?

[tinnaM42]

can i use the same prop thats on mine?

[Bob_S]

325 prop needed with an M42 gearbox on am m50 swop

[tinnaM42]

CAN I USE A M42 PROP ON A M2OB25 ENGINE AND BOX

[town325i]

no its to long you need an m20b25 prop

[zaust]

M30

The only way forward imo.

[tinnaM42]

if i use the m40 diff and a m20b25 box would a m20b25 prop fit at both ends??

[GrindCulture]

I wouldn't replace an M42 with an M20, ever. Stick an M50 in it, 4 valves per cylinder is the right way to go!

[magpie]

i have a m20,b20 prop if needed?
i'm just putting the m20 flywhhell clutch and starter on mine,it's chipped up and has a pan filter but i'm going to do all the easy mods on it before i decide where i'm going with mine.
i like good mpg combined with good speed.
a hard combination to achieve.the fly and clutch will give much better response [throttle]

[tinnaM42]

if i use the m40 diff and a m20b25 box would a m20b25 prop fit at both ends??

[Bob_S]

if i use the m40 diff and a m20b25 box would a m20b25 prop fit at both ends??

yes, all e30 boxes and props have the same fixtures and fittings so all are interchangeable within reason