NEW 308 FLYWHEEL WITH ONLY TDC MARK

Your situation doesn't surprise me (for a 20~30 year old car) -- there are so d*mn many (slightly) different 308 flywheel markings that, if I was a vendor making a new "run" of parts for the 308 market, I'd want to make only 1 version that could work on all 308 rather than having (and keeping track of) a lot of pre-stamped different versions -- just a guess. Is the supplier in the authorized F parts network or more of an F aftermarket supplier?

 

I'd agree that, if they are roughly the same price, I'd want one pre-marked for my version rather than the PM14 mark only -- perhaps TRutlands can explain.

I know that you want to get on with your project, but it might be worth checking with FerrariUK to see if they can supply a pre-marked one for your year/model/version -- how did/does the FerrariUK website price compare to what you paid?

 

Wouldn't surprise me if the Superformance and TRutlands part are from the same vendor -- there can't be that many companies making a living off of reproducing 308 flywheels .

Those prices are lower than the FerrariUK posted price of L866 for a US 308GT4 flywheel (but that might be for a 2-piece with the pre-marking).

I wouldn't be that concerned about the 1-piece vs 2-piece construction -- where are you going to get a new ring gear only anyway . Seriously, with the 1-piece design, I think the greater concern would be that the teeth won't be as hard as the teeth of a 2-piece flywheel (where the ring gear is a hard, but more brittle, alloy and the main body is a softer, but more ductile/tough alloy). Even if they didn't do any tooth surface hardening, if you used a 308 enough to wear the teeth off of the flywheel that would be a good thing IMO.