Help...I'm brain dead.

[DCColegrove]

yes the e34 version has a steel plug blocking the dipstick hole in the block - which easy to punch out. I have a m20 from an e34 in mine.
Over here in Aus I have found the e34 M20M25 are more common and therefore more available than the e30 versions.

This one came in Frankenkar (my $50 e30) I was looking at it and had a senior moment...

[gjuu]

Hmmm, my 87is has it in the side of the block.

yes the e34 version has a steel plug blocking the dipstick hole in the block - which easy to punch out. I have a m20 from an e34 in mine.
Over here in Aus I have found the e34 M20M25 are more common and therefore more available than the e30 versions.

[DCColegrove]

By cylinder head, it will be cast 2.5 and 2.7 one over the other. I'll take a pic tomorrow.

The super ETA will have an "885" head (marked 2.5/2.7)

so far the block casting number is an enigma... I've called every one I know at BMW and they haven't a clue (probably they can't remember either)

I did figure out this particular engine though. M20B25 from a 91 e34.... Just don't see them in the shop enough anymore to have the info lurking in my head...

[Aptyp]

WTF is right.... I cant remember shit.

Anyone know how to identify the M20B27 block (Super ETA) casting numbers ?

By cylinder head, it will be cast 2.5 and 2.7 one over the other. I'll take a pic tomorrow.

[DCColegrove]

e34s with the M20 (525) have the dipstick tube in the pan

Correct!

I pinned it down. It was really making my head hurt there for a day or two.

[gjuu]

e34s with the M20 (525) have the dipstick tube in the pan

[DCColegrove]

WTF is right.... I cant remember shit.

Anyone know how to identify the M20B27 block (Super ETA) casting numbers ?

[AlarmedBread]

any pre-e30 m20 should have it in the pan.

[xLibelle]

i think they are all in the block. ive never come across any m20 w/o dip stick provision in the block

[Sean]

Both my '88 s-eta and '89i have it on the pan, if that helps

That's so weird! Both my 88 SuperEta and 88 is had them in the block, same with my brothers 89 is.

wtf?

[Hallen]

Hmmm, my 87is has it in the side of the block.

[DCColegrove]

Both my '88 s-eta and '89i have it on the pan, if that helps

Well that might explain some shit...

I wish I had looked closer before I put it back together.

[SpecM]

Both my '88 s-eta and '89i have it on the pan, if that helps

[DCColegrove]

Which M20 block had the dipstick tube in the top of the pan instead of the side of the block?

(you get old and start forgetting shit)