Technical Flywheel question

Ok , got my 99a pulled apart. I've searched and can't find anything specific to this type of flywheel. It's pretty heavy. Can I lighten this type of flywheel? It's going in my '28 roadster.

 

That's a '32-4 type, using the same basic pressure plate as a Model A and about as light as a manhole cover.
The traditional favorite for making a cheap lightened wheel is the type that would have been on your 99 originally... on those, there is a raised ring similar to what you showed but it uses a normal 9" long pressure plate (the lightest common setup) bolted flat entirely inside the ring. Cut away the ring entirely, taper the outer edges a bit, and it's fairly light as iron goes.
On fit, you can use any '32-48, '49-53 don't work on earlier engines.
A PS...you could lighten what you have by cutting the rim, but this will require redrilling for the Long plate (serious precision required) and I think the remaining flat part is a heavier casting than the later ones.

 

Thank you for the clarification, Bruce. No wonder my search for 1941 flywheel info wasn't working, ha. I think I will look for a proper alum.setup for this vintage and do it right. I stumbled on this 3-3/16 bore factory sleeved engine and other than the fact that I can put my .045 spark plug gage beside the pistons it's perfect.

 

Joblot may well be able to find you a set of sleeves still for a no-sweat overhaul...I think I have the driver set downstairs. Aluminun wheel...good.

 

Bruce, re the flywheel/clutch, was this a common thing to do back in the day? Or was it like most flathead stuff, just repair with parts on hand and run it. I grew up on a ranch, so I get that part. Thanks, Grady