Lightning Whipple 2.9 Pulleys the same as Cobra 3.4?

[91svtcoupe]

Anyone know if the Lightning Whipples use the same pulleys as the Whipple Cobras?

Specifically I found a 4" upper pulley from a 2.9L Whipple Lightning and I am looking for a 4" for my 03 Cobra 3.4L

 

[willis414]

I think they have a different offset

 

[01yellercobra]

I was looking around not to long ago and saw somewhere the pullies are the same across all of the models. It's the snouts that make up the differences.

 

[willis414]

99.9% sure the pullies have different offsets. Lightning and cobras have different part numbers listed by Whipple.
The other reason I say this is I run one of the first 2.9s that hit the market. I was having belt issues at the time. I called Whipple they had me measure the pulley mounting depth just to confirm it was for a cobra and not the lighting.