E30 Zone

Posted: **Fri Nov 06, 2015 5:28 pm**

I'm planning a 2.7 with 87 eta block/731 head. ETA head and the 885 both have the extra steam holes, as does the ETA block. B20 block/731 head have none.
So is this something to be concerned about?
Many have simply put on the 731 as is. Haven't heard any issues concerning long term durability etc. Please share .....

Posted: **Tue Jan 04, 2022 12:02 pm**

did you drilled steam holes? are you using 731 head on eta block?

Posted: **Tue Jan 04, 2022 4:54 pm**

Steam holes ?????????????

Mart.

Posted: **Thu Jan 06, 2022 10:40 am**

Don’t worry about it

E30 Zone

731 head does not have the steam holes drilled in. Needed?

731 head does not have the steam holes drilled in. Needed?

Re: 731 head does not have the steam holes drilled in. Needed?

Re: 731 head does not have the steam holes drilled in. Needed?

Re: 731 head does not have the steam holes drilled in. Needed?