HARMoNIC BALANCER?

[purpl_stang]

WHAT IS THE STOCK BALANCER SIZE IS IT A 28 OZ????

 

[faststang90]

50.oz if u are taking about a mustang

 

[347HO]

What year engine to be more specific?

 

[purpl_stang]

Ive got a 90 model motor built and ive g a viberation andive changed everthing butthe balancer and i got one from summit its an SFI SPEC 18.1 and i wanna make shure it will work

 

[FrankenStang]

Thread title fixed.

 

[faststang90]

whats the part number of the 1 u got

9102 9224 7500 1003 1331 96

 

[purpl_stang]

A170143 Thats the one i got thats on the balance that im lookin at right now

 

[347HO]

If it's a stock rebuild than 50oz.
If it's an aftermarket build, you will need to know if the crank is externally balanced to 28oz or 50oz.

 

[Maryland Stang]

You'll need to look at the box the balancer came in or your receipt to get the part number. Summit has no parts that match that number. Try again.

 

[57fairlane]

A170143 Thats the one i got thats on the balance that im lookin at right now

Take a picture of the back of it (side with the snout).

 

[purpl_stang]

See i this will help ya and if itdoes can you tell me how you from lookin at it.

 

[57fairlane]

hmmm . . . I would say its a 50oz. Typically the 50oz weights are almost half the circumference while the 28oz weights are like 1/4 to a 1/5

 

[Maryland Stang]

It's impossible to tell from those pics. That number is just a serial number.

You should call Summit with that serial number and they should be able to tell you what it is. It usually takes about 5 minutes. It is better to be safe than sorry.

 

[Maryland Stang]

BTW, that opened space in the back is where the bolt in weight goes. My 50 oz Summit SFI balancer (Summit SUM-C4270 - Summit® Bracket Racer SFI Harmonic Dampers - Overview - SummitRacing.com) has that weight in place and it's supposed to be there with a 50 oz imbalance. I would absolutely call Summit and see what you have and what you're doing.