Another 416 Stroker Build-Pic Heavy
I'm sorry to inform you but your crank is about to break and fail the moment you fire it. Please do not run that engine until you install a proper YR approved "damper" << we will wait for YR to tell us what is OK to install.
Keep safe, install a non explosive thingy on the front of your engine and stay indoors, oh and run for a vaccine for a disease that has a 99.9% survivability rate as soon as its available. J.Rob
Yeah, don’t have a discussion.
Again, cranks RARELY fail. To have a bunch like that means either you believe they forgot how to make a crank, the metallurgy was wrong (did anyone bother to verify this??? You have the crank pieces there, send them out and have a lab tell you the crank is bad) or some other anomaly in manufacturing the part.
I don’t buy it, until someone can show that a whole run of cranks failed in some way that can be lab tested.
I can’t think of a crank failure that happened before the advent of all these “SFI approved” junkers they let through. Everybody and their mother was making dampers and because of NHRA and their knee jerk reaction to anything they mandated and SFI damper on most everything.
At that point, the “stroker” was just becoming a “thing” and that one change makes any OE damper ineffective. Then you have the bobweight change. And an engine that will most likely spend most of its life at an RPM range that the OE damper was never designed to work in.
Junk is junk at any price, but to think a company sent out marginal cranks and no one I know of has ever produced paper from a lab saying that those cranks were a lesser materiel or the wrong design than an OE cast crank.
RAMM, you can settle this once for all. Send the crank pieces you have, or get them from the customer and have them sent to a lab. I’d bet for a couple hundred bucks you could prove me wrong.