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    Thread: What's going on with my valve stem part numbers & mismatched info?

    1. Member The A1 and A2 German's Avatar
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      09-06-2019 04:10 PM #1
      Pulled apart a built +1 Ferrea 058 head, the valve guides are not like the 058 guides like this.

      #1) Part # 058103419 Pic here: https://www.europaparts.com/valve-guide-058103419.html

      Yet have guides with a seat (unlike above) which many times place it to 2.0t's :

      #2) Part # 037103419B Pic here:
      https://www.europaparts.com/engine-v...37103419b.html

      Now it gets more confusing:

      ECS states #2 does not fit, yet E-Eurparts says so per their car application sheet, yet Eurpoparts says they do not and companies go back and forth beyond that. Some mention of 2.8 V6 only, others state fine for 1.8.

      As well, one of sites states these #2 are 7mm stem thickness yet running Ferrea valves which are 6mm (5.98mm per Integrated Engineering). So....?

      Secondly per part #1, what sets the ~proper set placement/distance with no seat.....machine shop have to measure multiple times? That's the reason newer cars come with the seat to pull out guesswork?
      Last edited by The A1 and A2 German; 09-06-2019 at 04:14 PM.
      FS:Custom '73 CB350 Museum Piece, 8 miles FS:3 Piece I-Forged 19" Rims
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    3. Senior Member Vegeta Gti's Avatar
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      09-07-2019 03:27 PM #2
      You need to buy everything from one vendor instead if finding the cheapest route, etc. A vendor that has explicit knowledge of the platform so you're not in this situation again.

      Return the parts, get the correct ones for the valves you will be running.

      Sent from my SM-N950U using Tapatalk
      :HOMEGROWN MOTORSPORTS..SingerVehicleDesign...1:4.9 SuaSponte #13Dead Rabbits. Ungluck on IG. MKIforLife
      Quote Originally Posted by .Ant View Post
      What vegeta said.

    4. Member The A1 and A2 German's Avatar
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      09-07-2019 09:03 PM #3
      Those parts are OEM and links are for illustration purposes, aswell the head was built/purchased off one of the bigger 1.8t players on the forums yet is incognito both on You Tube and here to ask questions.

      In short, I'm looking to source the seated valve guides in 6mm, yet all results find only 7mm seated variants, the seated valves in the head are not 7mm as Ferrea valves measure ~5.98mm (6mm) and there's no slop.
      FS:Custom '73 CB350 Museum Piece, 8 miles FS:3 Piece I-Forged 19" Rims
      FS:Custom '69 Stinger: SOLD FS:10' VTWIN Chopper SOLD :

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