6 pictures of my Knifed Edged 3400 Crank

[blackbombshell95]

http://60degreev6.com/gallery/browseimages.php?c=12

It is in the pushrod gallery. 6 pictures. Click on the pictures to enlarge to full size.

Enjoy.

[gpchris]

What does it do?

[blackbombshell95]

Helps with oiling. The crank isn't gettin slowed down by oil.

[Ortie666]

How did it ballence out after? Have to use and heavy metal slugs?

[blackbombshell95]

They are going to begin the balancing on monday

[Ortie666]

Oic, Looks good tho!!, probably be a bit more crisp after

[Monzsta]

Not to burst your bubble, but this and Bull nosed counterweights seem to be the latest trend. However, anything to be rid of that flat face is bound to be better than nothing.

Clearly visible in this photo is another feature of the Lunati Pro Series crankshaft: the "Countoured Wing" counterweights, designed to deal appropriately with oil overspray coming out of the bearings as well as oil dripping from the valvetrain above. Unlike "knife-edge" counterweights--which simply split oil down the middle--the Lunati counterweights are specially contoured at their leading edges to direct oil (and air) away from the connecting rod journals. This reduces windage and frees up horsepower.

[silvergtjrad]

What are they charging you? If you dont mind me telling.

[34blazer]

im still wondering what kind of power can be thrown at it

[z34phoenix]

correct me if im wrong, but it says 3.1L on the crank now 3400
they are interchangeable arent they... if not OOOppps!

[SappySE107]

Same crank.

[ForcedFirebird]

Same crank.

Even the 3.4 I bought has the same "3.1L 981" markings, just some have the reluctor notches, other's don't.

[El_Diablo]

are you going to continue and deburr the crank aswell?

Not to burst your bubble, but this and Bull nosed counterweights seem to be the latest trend. However, anything to be rid of that flat face is bound to be better than nothing...

actually, if you look into aerodynamic theory, you'll see that most of the "issues" are on the trailing edge

i even had a thread about this... theory is that if you round out the front of the nose along with the bottom and then tapper the back end it will actually cut through a lot smoother than a knife edge or bull nose, seeing as aerodynamics and fluid dynamics closely follow each other in reactions and so on, this should provide the most gains and smoothest running engine... in theory

i would really like to be able to test 3 cranks but unfortunetly i dont have the time or money, nor do i have an engine dyno.... a "tear dropped" crank should also be easier to balance

[IsaacHayes]

Still, it should show some improvement regardless. Along with a crank scraper that would be nice.

[blackbombshell95]

I forget what I paid for it. I think like $150 for the knife edge? I could be way off.

I'm pretty sure the crank is finished. I could be wrong with that statement as well. All that I know is that this engine shop is top notch.