what crank is this??? pics inside

[Oneslowgs-t]

i posted this question yesterday with no pictures. one person told me to measure the stroke. im not sure how to do that so this why im posting this with pictures.

the guy who i bought the crank off of, i thought he said it was a 100mm crank which now i know its a stroker crank. and i asked him if it was a stock crank and he said yah.

 

[YZFR1]

If that is a 6 bolt crank than it might be a very rare g4cs crank. If it is a 7 bolt it probably comes from one of the mitsu/hyui 2.4l engines like spyder or something. It is an oem crank just not from a 4g63 and you will need different (stroker) pistons to run it.

 

[Oneslowgs-t]

there are 6 bolt holes for the flywheel so it is a 6 bolt.

 

[YZFR1]

That might be an aftermarket crank, here is what a g4cs crank would've looked like:

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[Oneslowgs-t]

no deffinate answer?

 

[BogusSVO]

Sorry , My Clevite catalog and the AREA catalog have no listing on a casting number of "73"

Nor do I see anything under Kia or Hyundai that comes close to the markings you provided.

It will have to have the stroke measured to find out.

 

[Oneslowgs-t]

How can I measure the stroke with the crank out of the block?

 

[BogusSVO]

This is a crude method, but should get you close.

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lay a straight edge, or pull a string tight so it splits the main bearing oil galley in half.

Next take a dial caliper (perfered) or a mesuring tape.

Now measure from the straight edge, to the center of the rod oil galley.

Now take that measurement and multiply by 2 and that will give you the stroke of the crank.

Stock stroke is 88mm or 3.465 so half is 1.732 or about 1 3/4 inches

Long stroke is 100mm or 3.937, so half is 1.9685 of 1 15/16

The diffreance is not much, but this should get you in the ball park