[RESOLVED] OEM Valve Diameters

[Spyder4g64]

I tried to search for the size of the head diameter of the OEM valves in a 1g head, and this was all i found..
http://www.dsmtuners.com/forums/problem-diagnosis/243598-stock-valve-diameter.html

I could not find the diameters in this .pdf

Anyone?

 

[Spyder4g64]

The valves i just recieved measure 35mm(8 of them) and 31mm(the other 8).

These valves are 2mm o/s, so i'm left to assume that the stock valves are 29mm & 33mm?

 

[whitedawg]

Stock 4G63 valve sizes are: Intake 34.0 mm Exhaust 30.5 mm

 

[Spyder4g64]

Not that i do not believe what you said, but do you have any documentation saying this?

It is kind of important to know whether i received the wrong parts or my micrometer is malfunctioning..

Thnx..

 

[TunaTalon]

I don't have a link to a Mitsubishi document but here is what Manley uses as stock size on SBR's site:
Slowboy Racing :: DSM :: Engine :: Head Parts :: Valves & Guides :: Manley

 

[Spyder4g64]

Thank you..

I was reading my micrometer's "origin point"(or zero) in the wrong place..

The valves measure 36mm, and 32.5mm.