the key will extend to #1 main bearing so the harmonic balancer has 2in of key to grab instead of a .25in and water pump gear is fully captured (it also only has .25 of the key running it)by the new key way also

as many of these engines as I have been into the crank key is always or close to being sheared off if you shear the dampner side you loose the oil pump as the dampner turns the oil pump if you shear the other end you loose the water pump so this should fix a potential problem

 

Shoulda used the search button


Jokin. Looks mighty fine mrb

 

Very nice

 

Looking good John

 

Can't wait to do mine.

 

key installed and rebalanced crank

 

Nice stuff John!

 

I covered this ina thread already.. lol nice work man you seem very knowledgeable

 

link your thread but this has been known for years

 

I was just playin around lol read it and thought it was interestin, good stuff!

 

word up foshizzle

 

weaksuace. Dont need no stinkin woodruff keys anyways!! free spinning balancer and free baller in da jeans fo da win

 

Thank you!

 

Beautiful!!

 

I'll be doing this when I build my bottom end as I've personally had two friends cars break the stock keyway

 

and people think im crazy

 

Oh you are crazy

 

Will try to give life into this old thread. Does anybody know the details of this modification?

I believe that the key way groove should be extended all the way from the beginning of the crankshaft until the 1st main bearing surface? In this case what do you use as a key way itself? Any piece of material which is machined to the correct size?

Is it necessary to balance the crankshaft after it? Should is be balanced with new key way or without it?



Whatsoever details will be highly appreciated!