Are they the same size? intake and exhaust valves from a turbo 617 and a non turbo 616. If they are not the same size , what was needed to fit them? Or is this not doable?

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1977 240D turbo

616s and 617s appear to be "modular" parts routinly swap back and forth. Worst case you might have to have a machine shop open up the seats a little. if my 616 survived that was on the list I will try and get some sizes for you.

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1996 s10 zr2 with a 6.5 turbo diesel
1996 c2500 suburban with a 6.5 turbo diesel
1981 300sd with a turbo 617
Monte carlo figure 8 car

83 616






Sorry got the info in two different forms, if you dig through im sure you will find what you need

Edit: I quit being lazy, they look the same to me.

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1996 s10 zr2 with a 6.5 turbo diesel
1996 c2500 suburban with a 6.5 turbo diesel
1981 300sd with a turbo 617
Monte carlo figure 8 car

thanks, they do look like they should be able to be used in either. The longer stem I think is the uprated engines.

I am building a new engine as a future replacement for mine. it will still be a 616, but want to set it up so I can turbo it later. My current engine is doing ok but has a lot of miles on it, and is a bit tired. So I know sooner or later will need to do something.

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1977 240D turbo

Just for those who may wonder this too, I have put the 617 exhaust valves in the 616. Needed to regrind the valve face to match the head. otherwise a perfect fit.

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1977 240D turbo

badass

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1996 s10 zr2 with a 6.5 turbo diesel
1996 c2500 suburban with a 6.5 turbo diesel
1981 300sd with a turbo 617
Monte carlo figure 8 car