Fan shroud question

[428Marauder]

My original plastic fan shroud broke, and it can't be repaired. I see that I can buy a replacement for about $90. Also, I see these universal chrome fan shroud kits that look nicer and are much cheaper. My main concern is every one I have seen says 20" in diameter. My original shroud has a 21" opening. Will these fit? I have searched and can't find one that is 21". What are you guys using?

[Nightmist66]

I just bought a new reproduction for mine. Got it from Dennis Carpenter. Nice piece. Only thing is you have to drill your own mounting holes. Same with some other repros. FWIW

Also, make sure the fan blades are half in, half out of the shroud, otherwise it defeats the purpose.