aluminum vs steel flywheel for stroker

flywheels were made big and heavy and strong for one reason... it was to prevent what is called a "clutch explosion". which can take your foot off at the ankle or even kill you. it's the same reason there is something called a "blow-proof bellhousing"

sure you can go lighter, etc. but it's at the expense of strength and durability.

however, with today's newer alloys, aluminum is much stronger than it was in the 70's. just be careful what you are buying and if it says "SFI approved" you will probably be safer.

also make sure you use fresh bolts / clutch plate / clutch / throwout bearing and that the bolts are of the proper grade

performance notions - it is really not a big concern with a 429 c.i. stroker. that being said my evo (my son drives it) has an upgraded (lighter) flywheel and a better clutch made by a company ACT. they work fine. no loss on takeoff, it's actually better. if we had went lower in weight it would have affected the fuel/ignition curves and we would have had to reflash.

just do your research, play it safe, have fun :D