What does your block say??

[Chris E30 Cab]

I noticed on my block that it says 2.5 & 2.7 on the drivers side near the front. Is that common?

Thanks!

[BS87]

All m20s say it, IIRC.

[Chris E30 Cab]

I'm almost certain my M20B20 didn't.

The M20B27 & B25 must share the same block, but I wonder if the M20B20 has a different one..........thought it was the same :?

[gstuning]

I'm almost certain my M20B20 didn't.

The M20B27 & B25 must share the same block, but I wonder if the M20B20 has a different one..........thought it was the same :?

It has basically the same one except for the smallest bore if I remember correctly

How about somebody stick in a 66mm crank from a 2.0 into a max bore M20,
high revs anyone

[Chris E30 Cab]

hehe....cheers Gunni