??? k5 crank???

[Fowler Racing396]

is there any difference in the 88 89 k5 cranks compared to the newer models 90 and up?  thanks

[DoldGuy]

Fowler,
The 89 has the same updated P/N as the 90 and on. Obviously the 88 is in discontinued status so?
DoldGuy

[RoostDaddy]

cant remember 100%, but a buddy had an '88 and his crank did look different.  I'll try to dig up something if nobody responds.

[Fowler Racing396]

had one of my buddies tell me that he thinks they will match up in the cases with the bearins, seals and flywheel. . .but it could be a weight difference but wont sure. .

[RoostDaddy]

I would think it would match as I believe the bearings are the same.   The older flywheel alone is a big weight savings.  Something tells me that the crank appeared different and looked to have been lighter.(never weighed it, may have just been an optical-illusion) 

[don46]

I actually think the 88 crank will work in the newer motors, 86/87 had a nut holding the gear on the clutch side but the 88 used the same snap ring as 89 and newer. I think I could use a 87 crank in my newer motors it looks to me like it would fit with no problems. I wonder if there was a part number change and in reality they are the same (88 and newer), I have both and they look dimensionaly equal with the only difference being the nut holding the gear on. Not sure though, haven't weighed them to see if there is a difference.