same m20s

[dutchdude]

does the m20 2.8 engine from a 83' 528e have the same head componets (rocker arms, rocker shafts) as that from a later 87,88 325 m20 engine? and it would be possible to enterchange right? i'm parting out my old 5 series, and my friend wants the some of the engine parts for his e30 bimmer thanks -jon

[bkelsey86]

it is not a 2.8 liter engine it is the 2.7 from the 84-87 325e and 325 cars. But between thsoe years yes they are interchangeable but not with the 88 since that was the super eta and had a different head.

[dutchdude]

i'm sorry, heh he has an "I" 2.5 engine,, could u take the rocker arms from the 2.7e to the 2.5 i ?

[bkelsey86]

As far as I know no you can't. The heads are different, When I need rockers and stuff for my 323i I know the 325e parts are compatible but the 325i ones aren't and the 323i and 325e heads are the same design except for bigger intake and exhaust ports.

[Digitalwave]

Why would you replace your rocker arms with used ones anyways?

[Jand3rson]

it is not a 2.8 liter engine it is the 2.7 from the 84-87 325e and 325 cars. But between thsoe years yes they are interchangeable but not with the 88 since that was the super eta and had a different head.

The super-eta head is an i head, the only difference is it has single valve springs.

[dutchdude]

basically i need aa set yes or a set no, i looked on bavauto, and the rocker shafts and arms are the same parts number for both cars,,,,

i just want a second opinion on it, to comfirm accuate question,,,

will rocker arms and rocker shafts from a 1983 528e work in a 1987 325is...?

[Fred]

E and I rocker arms are identical.

[dutchdude]

thanks for the directness fred l8r all