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Oversize P90 Exhaust Valves


Lurch2461

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check these out http://www.sivalves.com/ocforeign_valvessp_nis.html

 

They are what I have been told Nissan Comp sells. About $8.00 each and you can buy them direct. I have them in 2 heads and never a problem

 

This is the response I just received from SiValves:

 

I'M NOT FAMILIAR WITH THE P90 HEAD. OUR 8002SG IS 38MM HEAD DIAMETER WITH AN OVERALL LENGTH OF 4.620 INCHES (117.3)MM THE TIP IS .120 INCHES AND SINGLE GROOVE. IF THESE SPECS MATCH YOUR VALVE, THEN YOU HAVE THE CORRECT VALVE NUMBER.

 

Is there anything else I should know, as I thought the turbo P90 head used a shorter valve of about 114mm.

 

Cheers, Dennis

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