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> New Bare 039 Heads Available $279, AA Performace Products-In California
McMark
post Apr 20 2017, 01:24 PM
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Just placed mine. These aren't AMC. AA took the lead on this since AMC basically didn't want to deal with it. They will offer them in complete form in the future, and valve guide bores are both the same size for modern valves. Original 914 2.0 heads had a larger ex guide in conjunction with the sodium filled valves, but since sodium valves aren't available or used much anymore we can use smaller guides.
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Kansas 914
post Apr 20 2017, 02:46 PM
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QUOTE(McMark @ Apr 20 2017, 01:24 PM) *

Just placed mine. These aren't AMC. AA took the lead on this since AMC basically didn't want to deal with it. They will offer them in complete form in the future, and valve guide bores are both the same size for modern valves. Original 914 2.0 heads had a larger ex guide in conjunction with the sodium filled valves, but since sodium valves aren't available or used much anymore we can use smaller guides.

(IMG:style_emoticons/default/popcorn[1].gif)

So stainless steel valves? That is what is in my 2143cc.
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ChrisFoley
post Apr 20 2017, 03:07 PM
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QUOTE(McMark @ Apr 20 2017, 03:24 PM) *

Just placed mine. These aren't AMC. AA took the lead on this since AMC basically didn't want to deal with it. They will offer them in complete form in the future, and valve guide bores are both the same size for modern valves. Original 914 2.0 heads had a larger ex guide in conjunction with the sodium filled valves, but since sodium valves aren't available or used much anymore we can use smaller guides.

Nice!
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Mueller
post Apr 26 2017, 01:33 PM
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Wonder if they will make some /6 heads now!
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dansvan
post Apr 26 2017, 01:42 PM
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So they come with valve seats? Or pockets for valve seats?
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McMark
post Apr 26 2017, 02:02 PM
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Pockets. You can order them complete, but who makes those valve/seat/spring parts and how well their machined was not something I wanted to explore at this time.
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CMONNETT
post Apr 27 2017, 12:34 PM
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I'm curious how good these are. I'm half tempted to get a pair. Has anyone received theirs yet?
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Kansas 914
post Apr 27 2017, 12:37 PM
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QUOTE(CMONNETT @ Apr 27 2017, 12:34 PM) *

I'm curious how good these are. I'm half tempted to get a pair. Has anyone received theirs yet?

I think the "world" is waiting to see what McMark thinks of them. He will post his thoughts here or start a new thread when there is something to share.
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Mueller
post Apr 27 2017, 12:38 PM
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QUOTE(CMONNETT @ Apr 27 2017, 11:34 AM) *

I'm curious how good these are. I'm half tempted to get a pair. Has anyone received theirs yet?



Silly question, would 2.0 heads work with factory 1.8 cylinders or are they the wrong diameter?
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bretth
post Apr 27 2017, 12:56 PM
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I recently saw a company selling type VW (edit type 1) heads new complete with valves, springs etc for $125.00 if I recall correctly. I wonder if it is from the same people. For the life of me I cannot seem to find it now.
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McMark
post Apr 27 2017, 01:12 PM
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QUOTE(Kansas 914 @ Apr 27 2017, 02:37 PM) *

QUOTE(CMONNETT @ Apr 27 2017, 12:34 PM) *

I'm curious how good these are. I'm half tempted to get a pair. Has anyone received theirs yet?

I think the "world" is waiting to see what McMark thinks of them. He will post his thoughts here or start a new thread when there is something to share.

Got mine. I could've sworn I replied to this thread, but I guess I got sidetracked. (IMG:style_emoticons/default/wacko.gif) At this point I've only inspected them visually. But comparing them to stock 2.0 heads, everything looks the way it should. You would be hard pressed to identify these as reproductions. My next step is to ship them off to a machine shop that I trust for a more thorough inspection than I'm set up for. But I don't see why the bare castings shouldn't be a good starting point. The first few sets I end up usings I'll expect to remachine the cylinder spigots and then I'll know if their machining is correct. Installing the seats and guides should be the same as having a stock set rebuilt.


QUOTE(Mueller @ Apr 27 2017, 02:38 PM) *
Silly question, would 2.0 heads work with factory 1.8 cylinders or are they the wrong diameter

Only the 1.7 cylinders/head is smaller. The 1.8 cylinders will fit in 2.0 or 1.8 heads.

QUOTE(bretth @ Apr 27 2017, 02:56 PM) *
I recently saw a company selling type VW heads new complete with valves, springs etc for $125.00 if I recall correctly. I wonder if it is from the same people. For the life of me I cannot seem to find it now.

That's too cheap. Something's not right there. The cost of parts is more than $125.
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Kansas 914
post Apr 27 2017, 01:20 PM
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This is all very encouraging. Thanks Mark.
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McMark
post Apr 27 2017, 01:24 PM
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Click the pictures for the full size versions if you want a closer look.


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Mueller
post Apr 27 2017, 01:31 PM
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Nice, thanks for posting.

Are you going to install Timeserts or Helicoils for the studs?
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Mark Henry
post Apr 27 2017, 02:48 PM
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I think I'm going to have to get a set.

QUOTE(Mueller @ Apr 27 2017, 03:31 PM) *

Nice, thanks for posting.

Are you going to install Timeserts or Helicoils for the studs?

I don't see why you have to on a new casting. (IMG:style_emoticons/default/confused24.gif)

One thing I do see is no step in the cylinder seating area. It would be interesting to know what the chamber CC is.
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914werke
post Apr 27 2017, 02:55 PM
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notice the CHT location isnt drilled/tapped either.
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HAM Inc
post Apr 27 2017, 03:42 PM
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Overall they don't look bad at all for a first genertion casting run. I'll be porting a pair this weekend. I'll also use my cnc to reverse engineer and check critical features to see how they compare.

I wish they'd copied the later smog version which has more material around the exhaust port. My contact at AA said they plan to add material in several areas to the next batch for more aggressive porting. Wasn't able to get alloy info., but I'll be able to tell a lot by the way it machines.

They aren't as beefy as the AMC heads we've been modifying for years, but if AA works on that like they said they are they could have a solid product at a much more affordable price.
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Kansas 914
post Apr 27 2017, 03:45 PM
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QUOTE(HAM Inc @ Apr 27 2017, 03:42 PM) *

Overall they don't look bad at all for a first genertion casting run. I'll be porting a pair this weekend. I'll also use my cnc to reverse engineer and check critical features to see how they compare.

I wish they'd copied the later smog version which has more material around the exhaust port. My contact at AA said they plan to add material in several areas to the next batch for more aggressive porting. Wasn't able to get alloy info., but I'll be able to tell a lot by the way it machines.

They aren't as beefy as the AMC heads we've been modifying for years, but if they work on that like they said they are they could have a solid product, especially for the price.

Thanks for your input Len. Very important.
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914work
post Apr 27 2017, 04:35 PM
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Agreed thanks Len! and a question..
Ive been debating buying a set of AMC heads and engaging in some serious machine work to mod them to 2L spec and twin plug for my 2366 Mtr build w/Nikkies.
Do you think these would be acceptable options while perhaps saving me some scratch?
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HAM Inc
post Apr 27 2017, 06:17 PM
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QUOTE(914werke @ Apr 27 2017, 03:35 PM) *

Agreed thanks Len! and a question..
Ive been debating buying a set of AMC heads and engaging in some serious machine work to mod them to 2L spec and twin plug for my 2366 Mtr build w/Nikkies.
Do you think these would be acceptable options while perhaps saving me some scratch?

Verdicts still out on these castings. They make a good first impression, but at this point I need to work a pair. They clearly aren't as beefy as the amc's. The amc's are very good castings that have proven durable on a lot of very high output large displacement engines over the past 15 years. We'll see. Like I said, once I machine a pair I'll know a lot more.

I would LOVE it if I didn't have to weld heads to move the spark plugs anymore. I still do all of the welding and peening personally and it takes it's toll physically. Not to mention the time.
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