Harmonic Balancer

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Mar 10, 2002 | 09:59 PM

Shannonm1

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Harmonic Balancer

I have a '78 351W that needs a harmonic balancer. What all years or motors have one that would fit? Thanks in advance.

Shannon

Mar 11, 2002 | 11:16 AM

airharley

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From: Escondido, CA

Harmonic Balancer

If I am not mistaken you can interchange all years the 351W was made. It's the 302 eninge that had the change in weight.

Apr 11, 2002 | 10:24 PM

JMR

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From: DOG BOX

Harmonic Balancer

I need one for a '68 302. what years will interchange.

Apr 12, 2002 | 12:09 AM

Brian

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Harmonic Balancer

The small block performance book by Isacc Martin says any damper before 1981 will fit. The change from 28 oz to 50 oz was made then.

Brian

Apr 14, 2002 | 05:59 PM

JMR

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From: DOG BOX

Harmonic Balancer

I found one at a local yard that matched my old one , but I don't know if either are correct. I read somewhere that the 60's had three bolts instead of four holding the pulley. And my TDC mark does'nt my pointer....my timing pointer is on the driver's side the motors Ive seen lately are on the passenger side.. Can somebody decipher---C80E-6015-A
thanks,john

Apr 19, 2002 | 04:47 PM

m79f100

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From: cherry hill U.S.A.

Harmonic Balancer

the 'c'stands for 60s'the#8 it would be a 1968 302 engine,the 6015,is the # for a 302-A-stands for change level code.i also have a 68 302,my numbers were not as easy,were the letter 'E' is that stands for engine,on my block there is the letter 'M' were the 'E'should be?

Apr 23, 2002 | 04:53 AM

goodfoot

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Harmonic Balancer

Either the 28 oz. or 50 oz. will work. The key is to make sure both the harmonic balancer and the flex plate match each other. In other words a 28 oz. flex plates needs a 28 oz. harmonic balancer. There are no "Good Viberations".