Discussion in '6.9L IH & 7.3L IDI Diesels' started by krogo, Jul 30, 2020.
Are you staying NA or boosting her?
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Just do it! Will make a difference NA or turbo. Mine is NA but torquey even with a C6
I would want to put the cam in if it was mine. I think that it would make a difference, at least when there isn't much boost in the lower RPMs. I would also check the valve clearances before you put the cam in, throw the engine back together, and run it. If you don't want to or don't have time to check the valve clearances, don't run the cam. It can greatly shorten your engine life when valves and pistons touch. You DON'T want to be doing this again in a few thousand miles.
Upon reflection, I have decided that my desire to retain reliability exceeds my desire for a few more torques.
Thats what I thought. I did not feel like having to deal with valve clearances and springs. I felt like it would just open up a new can of worms.
So if you go no cam, what will activate the valves??
I said something similar to a guy who was unpleasant (to be forum friendly) several years ago. It was winter time, we were working nights. We'd all go outside five or so minutes early to start our vehicles. For some reason, the carb that was on my 1984 Mustang sounded like it had a big cam in the engine for a minute or so. As I was walking back inside after starting my car, I passed this guy. When he came back inside, he asked me "do you have a cam in that car?" I told him "well yes. It's running isn't it?"
HAHA, That's great!
Thanks. After that, he said "you know what I mean". I laughed and said that I did. Then I told him that it was a stock cam and that it was only the carb. I knew what he meant because that's what we used to say when I was younger. "Having a cam" in your engine meant a big cam.
On a whim, I purchased new exhaust valves. Those came in last week.
Over the weekend I did a quick pattern on the new valves on the old seats.
Huzzah! The seats are fine, the valves were just beat.
The new valves pattern beautifully on the old seats.
I'll just give them a quick lapping to match them up and I'll assemble the heads.
I like it when things like that happen.
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