oldslow
Samba Member
Joined: July 27, 2019
Posts: 140
Location: Cape Cod
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 Posted: Tue Oct 21, 2025 7:12 pm Post subject: Okrasa valves compared |
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I just purchased some IVAM 36hp Okrasa size intake valves. IVAM is an Italian company, and I believe that these are the valves that BBT sells. IVAM provides stock 36hp valves as well.
Wolfsburg West:
Stem diameter - 6.96mm
Valve diameter - 33.01mm
Seat width - 3.17mm
Lip thickness - 1.55mm
Weight - 54.1g
IVAM:
Stem diameter - 6.95mm
Valve diameter - 32.98mm
Seat width - 3.70mm
Lip thickness - 2.27mm
Weight - 60.0g
WW on the left has a black coating
The IVAM valve has a traditional 36hp shape, the WW valve is lighter and flatter with a narrower seat and a thinner lip.
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