331CI flywheel ??

hitorx · May 17th, 2008, 11:04 AM

Hello, I bought a 331 CI for my car but 1 important information is missing to me. I don't know what type of flywheel I have to use. My block is a true factory roller block, externally balanced front and rear 28.2oz. Some guys told to me that I have to put a 28oz flywheel. It is the same that put on some 347CI.

Thanks

e3sean · May 17th, 2008, 11:52 AM

yes if it is a 28oz imbalence then you will get a 28oz imbalence flywheel for a small block ford.

JBIGBOOTSY · May 17th, 2008, 12:18 PM

I thought 331s are a 50oz

e3sean · May 17th, 2008, 05:07 PM

it depends on the kit you buy. some specify differnt weight.

trueblue01 · May 18th, 2008, 03:54 PM

Can be 28 or 50. My 331 is 50 but I ordered the crank that way because I already had a SFI flywheel and SFI balancer. Could have just as easily done it with 28

May 17th, 2008, 11:04 AM	#1
hitorx Newbie 1981 Mercury Capri Join Date: Mar 2007 Location: Québec, Canada Posts: 29 iTrader: 0 reviews	331CI flywheel ?? Hello, I bought a 331 CI for my car but 1 important information is missing to me. I don't know what type of flywheel I have to use. My block is a true factory roller block, externally balanced front and rear 28.2oz. Some guys told to me that I have to put a 28oz flywheel. It is the same that put on some 347CI. Thanks __________________ 1981 Capri, 2003 Cobra brakes, 331CI, FR500 18" wheels, 1.9" drop

May 17th, 2008, 11:52 AM	#2
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	yes if it is a 28oz imbalence then you will get a 28oz imbalence flywheel for a small block ford. __________________

May 17th, 2008, 05:07 PM	#4
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	it depends on the kit you buy. some specify differnt weight. __________________

May 18th, 2008, 03:54 PM	#5
trueblue01 Enthusiast 1989 Mustang LX 10.98@126.7 NA Join Date: Feb 2008 Location: N.E. Ohio Posts: 698 iTrader: 0 reviews	Can be 28 or 50. My 331 is 50 but I ordered the crank that way because I already had a SFI flywheel and SFI balancer. Could have just as easily done it with 28 __________________ Never fast enough.

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May 17th, 2008, 12:18 PM	#3
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,391 iTrader: 0 reviews	I thought 331s are a 50oz

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