331 Stroker Help?

$uperstang

New Member

Jul 20, 2004

476

1

0

Detroit, MI

May 17, 2005

#1

• May 17, 2005

• #1

Ok, so I just purchased this 325 Eagle stroker kit forged everything from Super Engine builders in Chicago, there web site is www.gofaststuff.com. They are telling me it is a 50oz ext. balance and to use a 50oz damper and flexplate. I call this other company to get a 50oz pro damper and they tell me to call Eagle to make sure because they beleive it should be a 28oz. So I call Eagle and they say if it is the forged stroker kit, it is a neutral balance.

What the heck? Can anyone help?

 

Q

qplk11

New Member

Feb 8, 2004

82

0

0

Maryland

May 17, 2005

#2

• May 17, 2005

• #2

Sorry, don't know but I'll bump it for you.

 

T

tjm73

Founding Member

Aug 3, 2000

2,418

2

48

Rush, NY

May 17, 2005

#3

• May 17, 2005

• #3

I would talk to where you bought the stroker kit. They may have specially balenced the kit to work with the factory stuff most 5.0's already have to save their customers from having to buy a new flywheel/flexplate and front balencer.

 

neikoblu

New Member

May 9, 2005

63

0

0

Barksdale AFB, Lousyanna

May 17, 2005

#4

• May 17, 2005

• #4

If the company that you bought it from said 50oz then run that. Personally my 331 is 28oz. But do what they tell you cause it is their product.

 

Grn92LX

Fidanza Man!

Founding Member

Jan 14, 2001

6,819

64

129

New York

May 17, 2005

#5

• May 17, 2005

• #5

If you paid for the kit to be balanced at that shop you ordered it from and they said its 50oz, then use a 50oz flexplate and balaner. If you did you not have it balanced yet, then have it balanced to 28oz if you want to buy a new flexplate and balancer. You NEED to have the assembly balanced, you don't just buy it and install it.

 

T

tjm73

Founding Member

Aug 3, 2000

2,418

2

48

Rush, NY

May 17, 2005

#6

• May 17, 2005

• #6

Grn92LX said:

If you paid for the kit to be balanced at that shop you ordered it from and they said its 50oz, then use a 50oz flexplate and balaner. If you did you not have it balanced yet, then have it balanced to 28oz if you want to buy a new flexplate and balancer. You NEED to have the assembly balanced, you don't just buy it and install it.

Click to expand...

Grn92LX brigns up a good point that I just assumed. Did you have the assembly balenced?

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

95

99

PA

May 17, 2005

#7

• May 17, 2005

• #7

No crank is cast or forged at a certain balance, they all need to be balanced.

The guy at Eagle was referring to the new "internal" balance 4340 crank they offer, it balance to "0 or neutral" easier since it require no expensive heavy metal (Mallory), but I find weight still has to be removed.

Go on the recommendation of the company you bought the parts from, they should have balanced the kit. If it is not balanced it needs to be. Going 50oz on a stroker crank in not recommended since it takes a lot of material out of the crank end weights. Can it be done? Yes...