SR20DET valve guides the same as NA SR20?

[Odysseus]

The machine show called today to inform me that one of my valve guides has a crack in it. Is there a replacement other than spending 130 bucks at FR sport? Im not sure if its intake or exhaust side...

[fliprayzin240sx]

No, one side is bigger...think exhaust is bigger.

[Odysseus]

Are SR20DE ones the same as SR20DET though?

[TheWolf]

No SR20DE valve guides are 7mm exhaust and 7mm intake. SR20det ones are 7mm intake and 8mm exhaust. The exhaust boss is also about .040" bigger. The exact dimensions are in the FSMs for each respective car. There's like a saturn guide you can use to run SR20DE valves in a DET head.

[fliprayzin240sx]

When I did mine, I got the guides from JWT.

[Odysseus]

No SR20DE valve guides are 7mm exhaust and 7mm intake. SR20det ones are 7mm intake and 8mm exhaust. The exhaust boss is also about .040" bigger. The exact dimensions are in the FSMs for each respective car. There's like a saturn guide you can use to run SR20DE valves in a DET head.

If its intake side then wouldnt it fit since both are 7mm?

[TheWolf]

Im not sure if its intake or exhaust side...


If its intake side then wouldnt it fit since both are 7mm?

Which is it? If it's an intake guide that's cracked (probably from a bent valve) then a SR20de one will work. If you need an exhaust then I'll look it up by size. I remember a saturn or audi one that worked instead of dealing with Nissan japan.

[Odysseus]

I called my machinist and he said its the intake one and there was an SR20DE intake valve guide that was supposed to show up to him today so it should work...?

[TheWolf]

Yeah should work just fine assuming the boss is fine. Intake valve stem seals are the same as SR20de as well. Should be good to go.

[Odysseus]

I have DET stem seals on the way aswell...Waiting to hear from the machinist..