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Does anybody know if the LT1 will finally have a keyed crank snout ? Just curious if we will have to live with the occasional harmonic balancer that decides to wiggle itself off like some have had with the LS series engines.
Does anybody know if the LT1 will finally have a keyed crank snout ? Just curious if we will have to live with the occasional harmonic balancer that decides to wiggle itself off like some have had with the LS series engines.
I don't know if the LT1 will have a keyed shaft, but, the press fit harmonic balancer was an issue on the very earliest 2005 C6's, a diamond washer upfit fixed this issue.
I don't know if the LT1 will have a keyed shaft, but, the press fit harmonic balancer was an issue on the very earliest 2005 C6's, a diamond washer upfit fixed this issue.
Jimmy
Beyond that the harmonic balancers on the LS series engines still are known to "come apart". Crazy - should be totally avoidable. Wouldn't be such a big deal except the work to remove / replace it in a C6 is considerable.
Beyond that the harmonic balancers on the LS series engines still are known to "come apart". Crazy - should be totally avoidable. Wouldn't be such a big deal except the work to remove / replace it in a C6 is considerable.
I have to wonder if the installation has something to do with the LT1 HB coming loose? I have almost 140K miles on bottom end of LT4 with oversize cam and raised RPM limiter that has had HB removed and reinstalled a couple of times and it still remains in correct orientation. As far as the LS HB coming apart, I had an aftermarket that did that (sort of cheap one) but my ATI is running great. I would suggest quality and correct installation.
It is keyed on the LS9 in the ZR cuz it's driving a huffer. If they're setting the LT1 up to take minimal changes to put a huffer on it, perhaps they'll key the LT1.
It is keyed on the LS9 in the ZR cuz it's driving a huffer. If they're setting the LT1 up to take minimal changes to put a huffer on it, perhaps they'll key the LT1.
We can only hope. I have heard of a few people that needed this repaired more than once.