So I forgot to get the flywheel while extricating the 4 speed from the field car 280z the other day. I can go get it, but it's an hour long journey one way on my day off, which means I'd rather use something else. Looking up the clutch from a 280z, it appears that all the Z motors, KA motors, and L motor 4 cylinders or 2.0 or larger all fit. Which means the flywheel, as long as it's a 6 bolt, ought to work fine, right?
Well, I talked to the Datsun guru and he swears he put a 4 cylinder flywheel on a 280z and they had a hell of an issue with vibration. Changed the flywheel back to the correct 280z one, and problem solved. What's more, when I look on the internet for a new flywheel, the interchange suggests only 280z.
I know there are different depths, but has anyone else had a vibration problem from swapping flywheels? Not that I don't trust my guru, just never had any experience with that problem. But I don't want to get the motor and trans in the race car only to have to remove it soon after.