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nitro450exp 11-26-2018 01:05 PM

Crank pulley
Hello Crew.

Worked on many engines but relatively new to SBC.
Stripping down a 1965 SBC, the crank pulley is kind of odd.
It is just 2 plates riveted together with shoulder rivets about 1/2" apart.
There is no rubber element to it, it seems to have very little mass.
Also it is press fit and the crank is not tapped.
It does look like there is something in the hole in the crank, almost like a bushing.

I assume bear puller to remove it and BFH to put it back on.

Any advice welcome.


406Rich 11-27-2018 12:05 AM

Sounds like the standard 327 crank pulleys, yes just riveted together, do you have the very small balancer on the crank...about six inches across....if you pull the engine down check the parting line on the crank, if its wide (1/2 inch or wider) its a steel crank good score, if its a narrow parting line ( like just a seam its a cast crank).. bah hum bug...
All the early SBC were press on balancers, do not use a hammer...use a puller to pull off the balancer easily, you can drill the hole and tap it easily enough and buy the bolt and heavy washer from Summit or Jegs then just use the bolt to pull it down upon reassembly...

nitro450exp 11-28-2018 07:23 PM


Actually it is the pully center, the rubber and outer ring is missing.

406Rich 11-29-2018 12:41 AM

1 Attachment(s)
Early 327 steel crank balancers looked like this one pictured, they changed in `67 I believe..also not all dampers are equal as the timing marks have moved on them from four degrees to ten degrees...not sure as to what year though..

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