Author Topic: TD vs NA heads - how do I tell the difference?  (Read 7115 times)

Reply #15November 23, 2009, 11:08:08 pm

rabbitman

  • Veteran

  • Offline
  • ***

  • 2788
Re: TD vs NA heads - how do I tell the difference?
« Reply #15 on: November 23, 2009, 11:08:08 pm »
I was always told that all VW reman heads were TD spec.  Initially, the NA and TD heads were different- either casting, valves, or both, but all factory reman heads are supposedly the same.

I don't know that for sure, just going on what I've read.

Brendan

I read that the TD heads and exhaust valves were a slightly different metal than the NA's so I don't see how they could change the heads metal without completely melting it down and starting over ???
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN