[Tigers] Converting from 5 bolt to 6 bolt bellhousing and harmonic balancer question

[Larry Mayfield]

And I think Quartermaster or Quicktime has a 6 bolt bell to the old top 
loader.   And they wont require bashing the fire wall to pu it in I'm 
told.  The Performance Products dampers are a great looking item. I just 
bought one for the Sunbeam LA+SR car's next motor. SFI version and it 
turns out that the  imbalance weight is removable. And the convert to a 
neutral or zero balance item. Want to use your 28 oz unit on a 302, 
simply swap the weight.

as in all things YMMV

mayf

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drmayf
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On 3/5/2012 9:08 PM, Smit, Theo wrote:
> Hi Nathan,
> When you convert from 5 to 6 bolt you have to change the bellhousing, block
> backing plate, clutch fork, transmission input bearing retainer, and get or
> make a new mount for the clutch slave cylinder. For the trans input bearing
> retainer you may be able to just get a spacer ring; the 6 bolt bellhousing has
> a slightly larger register diameter, as well as a different transmission bolt
> pattern. Some rare OEM housings have dual patterns; otherwise you have to
> adapt a 6-bolt one to accept the narrow transmission bolt pattern from the
> earlier transmission.
>
> Some folks will tell you to just get a whole wide ratio Toploader so that you
> get more street usable gears, along with the proper mounting pattern to bolt
> up to your 6-bolt engine. You can also get one of these bellhousings:
> http://www.jegs.com/i/Quick-Time-BellHousing/698/RM-6063/10002/-1?parentProdu
> ctId=
>
> Nice thing is that it should have all the right holes and it's SFI certified
> so your feet can feel just that little bit more safe.
> Caveat: I haven't used one of these... but if I was doing the 6 bolt to early
> toploader setup, it is what I'd put at the top of the list.
>
> Harmonic balancers are definitely spec'ed according to the imbalance of the
> crankshaft assembly. It's easy to find 28 oz-in ones, but you may have to do
> some extra digging to find a short, 3-bolt one so that the stock pulley will
> fit on. On my 5.0 I'm using a 50 oz-in. Performance Products damper, which has
> three sets of timing marks engraved and inked into it. They make a similar one
> for 28 oz-in. applications, and you can get SFI or non-SFI as you see fit.
>
> Theo