ATI crank pin kit
If you meas. the tool, the smaller dia length is .830, meas. from where the end where it hits the crank gear to where it steps up.
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The length of the crank snout is 3.00"
The length of the stock crank gear/pump drive is 1.725"
Which leaves 1.275" of crank past the gear.
These dimensions are the same gen 3 to gen 4
You might have to pull the pump and measure. Can't imagine the crank snout is too short.
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Your crank looks correct.
Wondering, do you have a double roller chain? With the separate oil pump drive?
Might have the wrong drive. They are shorter.
Ron
The LS4 isn’t mentioned here hardly at all.
I bought an LS4 for parts and wanted to see what was different on the crank. That's when I noticed the casting number was the same on the crank. I Measured the snout just to be sure.










