stangnet says 28 autozone says 50!!

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jan 30, 2007

#1

• Jan 30, 2007

• #1

on the stickys here it says i need a 28oz balance for my 351 swap but autozone says there replacement 351's are a 50oz balance. can someone( who has done the swap maybe) tell me which one i need for sure.

 

85ragtop

BTW, I like dudes.

10 Year Member

Nov 29, 1999

823

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NC

Jan 30, 2007

#2

• Jan 30, 2007

• #2

The one I had to get was a 28oz. This was 351 from a 79 F-350.

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

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99

PA

Jan 30, 2007

#3

• Jan 30, 2007

• #3

Follow the recommendation of what ever motor you are buying, not knowing who there motor source it it could be either. I am sure the motor will come with paperwork.

 

S

smr

Member

Nov 14, 2005

167

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16

Nor*Cal (Vacaville)

Jan 30, 2007

#4

• Jan 30, 2007

• #4

my cleveland is 28oz

 

9

95GTAODE

New Member

Nov 25, 2004

200

2

0

Jan 30, 2007

#5

• Jan 30, 2007

• #5

I think it's safe to say that, as usual, Autozone is clueless!

ALL 351W motors are 28oz balanced from the factory. I highly doubt that a high volume rebuilder is going to take the extra time, and cost to re-balance the crank to 50oz.

I would try to obtain the name of their rebuilder, and contact them directly to get the straight answer.

 

F

fast4cheap

New Member

Jan 22, 2007

82

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north carolina

Jan 30, 2007

#6

• Jan 30, 2007

• #6

All 351s are 28. there is now way they spent the extra money to rebalance the motor. I just dont see that happening. If they give you extended warantee then do as they wish. The best thing to do would be call they company that remans there engines they would know.

 

S

spierce

Member

Jul 27, 2004

87

0

7

Tucson, AZ

Jan 30, 2007

#7

• Jan 30, 2007

• #7

Like everyone says, ALL 351's are 28oz. I checked into this extensively when I built my motor.

 

68torinogt

Hey guys, guess what--I have a bi-pass!!!

Mar 21, 2006

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0

53

Welcome my son, welcome to the machine

Jan 30, 2007

#8

• Jan 30, 2007

• #8

autozone is the place you need to run away from. find a good auto parts store that will go the extra mile for a customer

 

8

86bluecobra

Advanced Member

Dec 20, 2004

4,265

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69

B.C. Canada

Jan 30, 2007

#9

• Jan 30, 2007

• #9

forget what the minimum wage parts guy says... you need a 28 oz flywheel.

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

95

99

PA

Jan 31, 2007

#10

• Jan 31, 2007

• #10

95GTAODE said:

I think it's safe to say that, as usual, Autozone is clueless!

ALL 351W motors are 28oz balanced from the factory. I highly doubt that a high volume rebuilder is going to take the extra time, and cost to re-balance the crank to 50oz.

I would try to obtain the name of their rebuilder, and contact them directly to get the straight answer.

Click to expand...

I had a customer bring me a autostore replacement 351W that was 50oz a few years back...not sure what parts store it came from.

The 351W should be 28oz but like everyone has mentioned follow the paperwork/warranty that comes with the motor. Then if there are any issues you have it all to back you up.

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jan 31, 2007

#11

• Jan 31, 2007

• #11

the balance

thanks guys. and i got the number to the manufactoring company who rebuilds them today im gonna givethem a call tonight and will let everyone know what the company says.

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jan 31, 2007

#12

• Jan 31, 2007

• #12

I CALLED

WELL I CALLED THE COMPANY AND THEY SAID 50OZ. CAN SO IM ALL CONFUSED NOW. WHAT WOULD IT HURT IF I PUT A 28OZ ON INSTEAD. OR WHAT IF THERE WRONG AND I PUT ON A 50 OZ AND ITS REALLY A 28OZ.

 

MeanMussy

Founding Member

May 25, 2000

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Louisville, KY

Jan 31, 2007

#13

• Jan 31, 2007

• #13

they're not telling you that you need a 50oz because of the year of your car are they?

If it's a 351W, it's a 28oz. 5.0s take a 50oz.

If you put the wrong balance fly wheel on, it'll vibrate like hell. Bad idea.

 

F

fast4cheap

New Member

Jan 22, 2007

82

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north carolina

Feb 1, 2007

#14

• Feb 1, 2007

• #14

look man if they dont even know the factory balance of there engines I wouldnt even consider buying one from them, RUNAWAY and never look back I just dont believe they have spent all that time and money to change it to a 50. I have seen bulk rebuilds with different size cylinder bores, They feeding you some BS probally based on the year of the application, FIND A REPUTABLE BUILDER OR WASTE YOUR MONEY.

 

It's a 5_0 HO

New Member

Dec 20, 2006

42

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Feb 1, 2007

#15

• Feb 1, 2007

• #15

MeanMussy said:

they're not telling you that you need a 50oz because of the year of your car are they?

If it's a 351W, it's a 28oz. 5.0s take a 50oz.

If you put the wrong balance fly wheel on, it'll vibrate like hell. Bad idea.

Click to expand...

Yeah i wouldnt listen to autozone they give me the wrong information all the time. what is said above i would agree with .:SNSign:

 

mustanggt94

Member

Feb 22, 2002

642

0

16

Indianapolis, IN

Feb 2, 2007

#16

• Feb 2, 2007

• #16

You only need a pulse and be able to speak Spanish and/or somewhat good English to work at Autozone....beware!

(former Autozone manager)

 

comecorrect

New Member

Dec 17, 2001

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Ft Bragg, NC

Feb 2, 2007

#17

• Feb 2, 2007

• #17

28oz!!!!!!!!!!!!!

 

JChalfan

Member

Nov 27, 2002

551

0

16

Bellevue, WA

Feb 2, 2007

#18

• Feb 2, 2007

• #18

You will be MUCH better off getting an engine from a reputable rebuilder. I've heard NOTHING but horror stories about parts house rebuilt engines.

 

EMW150

Founding Member

May 22, 2000

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Roaring Spring,PA

Feb 3, 2007

#19

• Feb 3, 2007

• #19

Rick 91GT said:

I had a customer bring me a autostore replacement 351W that was 50oz a few years back...not sure what parts store it came from.

Click to expand...

Hey Rick. How's it going? I wonder if that could have been one of the 351 HOs they put out in the late 80s / early 90s. There may be a difference in the HOs, not sure.

 

S

speedytang

Founding Member

Jul 28, 1999

765

1

17

Marengo,Ohio,US

Feb 3, 2007

#20

• Feb 3, 2007

• #20

Auto Part stores on the computer treat the 5.0 and 5.8 as the same. It is a mistake in the system. Lets be honest if the guy behind the counter can read what ever that Stupid Box tells them is what they suggest. Part store using a Human for information ended in the 80's thanks Computers. LOL
28 oz is the correct balance but to throw a balancer in the mix I have seen some new cranks using a 50oz balancer for the 351 so that you can use your old balancer and flywheel. If the company that is rebuilding the engines is using those you now know the story.