stock 502 external balance flywheel
if you got anything please pm me on here
thanks

need something asap I want to bring my rotating assembly in to get balanced by next wed.
thanks

Do you by chance have a gen 4 flywheel,I may be willing to trade? I am about to build a dart block with 2 peice seal and can't reuse mine.

No sorry I have a 454 1 piece rear main flywheel

I need the 502 setup its a little different than the 454 one

454 flywheel will work fine if external balance. Especially if you are balancing rotating assembly anyway. Look in GM catalog, GM performance flywheel for 454 and 502 is the same.

I was told by a few local engine builder that the 502 and 454 used a different flywheel

does anyone know this from experience

I went from a CAST stock 454 crank to a FORGED stock 502
theres supposed to be a difference in the way the made the flywheels

they are both external balance but there is a difference the way they made the wheels between what came on the cast cranks and the forged cranks I think

both cranks are 1 piece rear main cranks

Sorry for cast crank I think it is different. I just bought one for a forged crank, and it was the same for a 502 and 454.

I'm not aware of them being any different from one another.
I also don't believe there is any difference in flywheels from a one piece seal crank vs. a two piece seal crank. They may have used different part numbers over the years, but it's not going to matter if you're having the whole assembly balanced... it'll all get corrected anyway.

The 454ho and zz502 both use the same forged steel srank.

One piece seal and two piece seal flywheels will not interchange. The added weight is in a different spot.

If the assembly is being balanced the 454 cast crank should work, it may cost you some heavy metal on the crank balance, and you will have to remember if you ever change the flywheel.