daveintexas

I've got a good deal on a Hays billet steel flywheel 11" 168t for BBC internal balance. In the notes for the flywheel it states it will not fit 400 and 454 bbc. i have a 509 build that i am doing. Does this concern me and the bellhousings used for marine ?? Should i be concerned? Part number hays-10-130. thanks, Dave

Stingray69

http://www.haysclutches.com/ProductD...&minselection=

I used Hays 10-430 on a Gen 6 502. Steel, SFI, External, 168t.on my Gen6; fits Gen5&6.

http://www.haysclutches.com/ProductD...&minselection=

Thinking this is Internal Balance (and not for Externally balanced BBC's) and won't work for you.

http://www.haysclutches.com/ProductD...&minselection=

MkIV BBC is 10-235

What Gen 502 is this?

rdoactive

1) 400 and 454 are externally balanced. Dont know if your engine is internally or externally ballanced.
2) No difference in marine vas non-marine flywheels unless you have a top mounted starter.
3) The coupler or drive plate are a lot more prone to damage than the flywheel, so why bother with billet?
My $0.02
Gary

daveintexas

I'm using a Dart Big M block and my crankshaft is for internal balance.

daveintexas

Only reason i am using a billet is because a got a good deal on the flywheel.

Vinny P

I have a Dart Big "M" block. I used a billet internal wheel, no problems at all.