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.
stangnet says 28 autozone says 50!!
- Thread starter BK_CAULEY
- Start date
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.
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.
68torinogt
Hey guys, guess what--I have a bi-pass!!!
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
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.
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.
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.
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.
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
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.
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.
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
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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
You only need a pulse and be able to speak Spanish and/or somewhat good English to work at Autozone....beware!
(former Autozone manager)
(former Autozone manager)
comecorrect
New Member
JChalfan
Member
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
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.
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.
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.
