Replacement harmonic balancer for a Slant Six?

[timk225]

I might be doing some engine work on my 1973 225 this coming winter, and I was thinking of putting a new harmonic damper on. Simply because the 52 year old rubber in the one I have now probably isn't in good shape and not damping as it was originally intended to.

What dampers will fit my Slant? A big block unit? Then there's the whole issue of timing marks, but if I am doing the engine work, I'll have a dial plunger micrometer and degree wheel anyway, so I can properly measure and mark the new one with a Mopar timing tape.

 

[MOPAROFFICIAL]

Dorman, pioneer, foreign brands



PLYMOUTH 3.7L/225 Harmonic Balancers Harmonic Balancers Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

 

[MadScientistMat]

And if you want an SFI rated single groove unit, there's Romac.

 

[Charrlie_S]

DamperDoctor

The #1 source for new and rebuilt harmonic balancers, Dampers for internal combustion engines. vibration dampers rebuilt to OEM specs. replacement harmonic vibration balancers a

damperdoctor.com

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[MOPAROFFICIAL]

whatever you do, don't overthink it

 

[volaredon]

Charlie beat me to it. I've dealt with both. Reasonable and quick turnaround. They'll rebuild yours

 

[66Signeto]

Isn't the timing mark different depending on the year?

 

[Charrlie_S]

Isn't the timing mark different depending on the year?

yes

 

[Jim Kueneman]

http://[URL][URL]http://damperdoctor.com/

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http://[URL][URL]https://www.damperdudes.net/

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Yup get it rebuilt and eliminate any potential issues. You know the original is right so keep it. There are so many risks in aftermarket parts for these old cars it is prudent to just rebuild what you know is original and is right.

 

[BillGrissom]

http://[URL]http://damperdoctor.com/

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http://[URL]https://www.damperdudes.net/

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Interesting 2nd link. It shows that both Ford and Chevy 6 cylinder engines also had a damper with integral fan-belt pulley like the slant-six. Best way to squeeze a straight-six into an engine bay. I wonder if either also had the AC-pulley that bolted to the aft side of the damper pulley, with a large center hole to fit over the timing cover snout (at least true in earlier slants).