eLTwerker

I know I'll have to clearance the timing cover a bit and grind down the bushing for the opti to sit right, but is that all? That's what I was told over at cz28.com.

SStrokerAce

iTrader: (2)

You have to "fix" the hex adjust part to make it work with the opti.... not the easiest thing to do even if you have a full machine shop.

Bret

eLTwerker

Is this timing chain set sufficient to carry up to say-6300 rpms?

SStrokerAce

iTrader: (2)

easily, that and more

eLTwerker

Does that mean its no longer adjustable?

Colin91Z

iTrader: (9)

I did it. It wasn't that bad. I also had to grind a bit off of the allen-head bolts that hold the sprocket to the cam to get the opti to seat properly.

Really, it's a very nice part and degreed in perfectly. No regrets from me on it.

Colin91Z

iTrader: (9)

No, it'll still be adjustable. It's just that the longer dowel means that it's harder to adjust than it would be on a regular SBC because you can't just stick an allen key in there to turn it while it's bolted to the cam. You'll have to take the cam sprocket off, turn the bushing to the desired setting, then reinstall and degree the cam again till you get it right. The good new is that chances are, as long as your cam is ground properly, it'll probably degree dead-nuts on the first try. It did for me at least. Of course I double and triple checked it just to make sure...that's just good practice