Help me identify this 10v head

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Help me identify this 10v head

Postby Berserker » Mon Jul 10, 2017 5:08 pm

Friend had this head rebuilt, ports welded and re-machined for a WX application, and we're trying to identify what it came from.

I'm thinking JT or NG, based on the machined hole for the cam-driven vacuum pump rod, but I'm having a hard time figuring out what it is beyond that.

Thoughts?
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Re: Help me identify this 10v head

Postby DE80q » Mon Jul 10, 2017 8:21 pm

It's not an NG, this can be seen by the intake port shape. It's either a JT, or an NF. The NF uses larger intake valves than the JT.
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Re: Help me identify this 10v head

Postby Berserker » Tue Jul 11, 2017 10:21 am

Based on that I'm assuming JT, since the NF doesn't include the machined port for the vacuum pump rod. You're right about it not being an NG, injectors in the IM on the NG. It's been a long while since I tried to identify any 10v stuff.

Thanks!
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Help me identify this 10v head

Postby Henrybor » Mon Sep 25, 2017 12:01 pm

Friend had a automotive cylinder head rebuilding shop and this head was on his shelf. When he quit the business I inherited the cylinder head. He didnt know what it was from either.
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Re: Help me identify this 10v head

Postby Noisy Cricket » Sun Oct 29, 2017 9:06 am

I have an NG head that is machined for the vacuum pump rod. FYI.
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Re: Help me identify this 10v head

Postby DE80q » Sun Oct 29, 2017 12:18 pm

I believe all the NG heads had vacuum pumps. I'm not sure about the NF heads though, I've never had one in my possession to know.
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Re: Help me identify this 10v head

Postby Berserker » Wed Nov 01, 2017 2:34 pm

Huw Powell's site says there's no vacuum pump on the NF head.

https://audi.humanspeakers.com/nf-vs-ng.htm
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