351C Steel Flywheel for Pantera

Hi Garth,

If that can help you, i just ordered this one:

YellaTerra 9902L (steel - 10.8 kg - 164 Tooth - 28 Oz Counter balanced - 11" clutch diameter).

Garth, are you sure your “herky-jerky” problem is caused by your light weight reciprocating assembly? Could it be a tuning issue? I have a lightened steel crankshaft, light weight crank damper, 157 tooth aluminum flywheel and an aluminum pressure plate and have no such issues at low speeds.

I agree with with David, I wouldn't abandon the lightweight parts based on your symptoms Garth.  I have had the issue before with lightweight components and it was a carb tuning problem.  I hypothesize that you have a lean condition at that RPM load area. A wideband A/F gauge is a great addition for diagnosing driving issues. They are relatively inexpensive today

Thanks David and John.  Certainly some things to consider.

After my original engine swallowed the air cleaner stud I dropped in a spare 351C with nearly the same cam specs and transferred the carb, headers, and CF aluminum flywheel and clutch to it and it was much more drivable.  That's what led me to thinking it might have been a combination of the lightweight aluminum flywheel with the lightweight crank.

I do plan to put a Holley Sniper EFI on the car, which I'm told significantly improves the low speed drivability, so I may just keep the existing aluminum flywheel.  I DO love how quickly it revved!