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I have a quadrajet-carburated m20b20 engine on my e21. Just got a hold of an ETA engine from an e30 and a 731 head and I'm thinking of putting these on the e21 (then in the future, install an ITB and performance chips).
Only problem is, I noticed some blemishes on the head (see pictures).
20200219_220100.jpg
20200219_220209.jpg
Can I use this head without any repairs/modifications? Can I use metal epoxy to repair the water passageway on the first pic or should I contact a machine shop for welding and shaving? If I can use this head as ease without problems, I would.
Your help and guidance is much appreciated.
Member
Diggin' the Qjet! Pics please!
All that concerns me is the blemish in the fire ring area. Have you tried cleaning it up?
If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. - Mark Donohue
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Sorry was only able to see your request today. I've been busy with all this concern about covid. I hope all is well. Here are the pics as requested...Originally Posted by ross1
Before pic... when the stock Solex 4A1 was still installed...
20131005_183026.jpg
After upgrading to an Edelbrock...
20131204_140922.jpg
Another angle...
20131211_003117.jpg
Cheers! Keep safe!
Member
You mean 1 or 2? If 2, I think I just missed cleaning that spot. So 1 is ok?
Attachment 674646
Member
I would have it welded and shaved.
Member
I think E21's are probably the rarest of all BMW's. I hardly ever see them for sale. Goodluck.
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