Lower Motor pulley question - 383 BB

[turbo36]

The lower motor pulley on my 65' 383 BB has an odd bolt pattern ; all the holes are evenly spaced except for one, is this normal? The reason I ask is that the damper on the engine has all evenly spaced holes, therefore I can only get 5 bolts to go in.

 

[rolling_Thunder]

It was normal on the earlier engines for one hole to be offset... the later engines (1972+ I believe) used a evenly spaced bolt pattern.

 

[turbo36]

It was normal on the earlier engines for one hole to be offset... the later engines (1972+ I believe) used a evenly spaced bolt pattern.

So can I throw this on the Bridgeport and slot it out to fit?

 

[Jim Bob The Dancing Bear]

Yes. I have seen aftermarket one's with a slot.

The 440 I have now just didn't have the last bolt in it. It does now as I switched pullies.