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I took some meas., from the end of my crank to the crank gear, where it jams, is aprx. 1.290, or just under 1 5/16".
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.
I took some meas., from the end of my crank to the crank gear, where it jams, is aprx. 1.290, or just under 1 5/16".
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.
end of my crank to crank gear is 1 1/8 toying with putting the tool on back to front it might work
Either the crank gear isnt on all the way, or someone may have cut some of the crank snout off for some reason. If you rev. it, it will put the drilled end further away from the end of the crank. You could pull the cover, and crank gear, maybe make a spacer to hold the tool out some, and drill it-one caution, when you get to the honing part, be careful, dont make the hole to big. Only other solution would be to use the Procharger style, where you drill thru the front, splits the hole bet the balancer and crank.
I have a crank and gear sitting here.
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.
Do you by any chance have an ls7 front cover there? Doesnt look like it. Looks normal depth. Still the crank looks short... but hard to judge from the pics
the engine is a bit of a bitsa gen 3 block gen 4 internals it came with an LS4 front cover so now wondering if the crank is an ls4 (13mm shorter)will drop pan and check will also try the tool on reversed with the cover off may work
My friend owns ATI, so i sent him an email, I remember a while back I ran into something diff on these things. There is a 918993-1 that is for the front dist. drive setups, verify you dont have the dash 1 tool, although it seems you dont.
the engine is a bit of a bitsa gen 3 block gen 4 internals it came with an LS4 front cover so now wondering if the crank is an ls4 (13mm shorter)will drop pan and check will also try the tool on reversed with the cover off may work
Ah. Learn something new every day!
The LS4 isn’t mentioned here hardly at all.
I had forgotten all about the LS4, isnt that the sideways mounted engine? If I remember right, the crank is diff in the rear also, takes a smaller FW or something, so I guess they had the shorter snout also.
My friend owns ATI, so i sent him an email, I remember a while back I ran into something diff on these things. There is a 918993-1 that is for the front dist. drive setups, verify you dont have the dash 1 tool, although it seems you dont.
i believe i have the right kit just a short crank. i removed the oil pump cover and can now fit the tool on backwards which should work just need to make sure its in line with the timing gear sprocket/oil pumpdrive cut out or i will have trouble getting them of. will drop sump+confirm crank no to see if it is an LS4
That is an LS4 Crank. The LS4 crank uses the same casting but the snout is machined shorter. Same with the rear flange.
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.
06-28-2020, 08:57 AM
ATI crank pin kit 
