Are these cracks a scrappable offence?
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pic of head 2
Again, is this knackered? -
7A head, water jacket erosion
Is this too far gone or usable?Comment
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I woud'nt use any of them. Find a good 7a head and go from there.Comment
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No1 doesn't look too bad. No2 and No3 look like they have seen better days...91 Modded 3B
14 A6 Avant Black EditionComment
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Looks like the valve seats are broken as well. The cracks doesn't look bad, but if the seat rings are also cracked that will affect the valve seal and thats not good.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - ProjectComment
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Third one is not so good due to some coolant channels corrosion. Would not risk to use it. It may be repaired by welding, but the cost of alu-welding can be higher than another good used head.Comment
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Dont use them, for the same reason i throw to the trash 2k euroComment
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I had pretty much written off the two aby heads, the third was a 7a i ended up with so it has no chamber cracks but that corrosion looked quite bad so i thought i should ask
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Better find crack free head
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