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crank should have been keyed when blower went on...wayyyy too much tension for the LS setup. I have no clue why they didn't key them from the factory. Especially on a motor base that is making such good numbers STOCK. I'd try to bolt it up, remove bolt, tack weld pulley to crank (if possible) and reinstall bolt while you save for a permanent fix.
I did something similar on my old 79z28, broke the key, ended up using a helicoil on the main bolt (which a few racing forums recommend even on new cranks because they are stronger). It help up fine after that.
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if u weld it it may throw it off balance would it? btw i had this crap happen to me as well...was a worn out ASP pulley...there aluminum and once u install em and remove em they wear out.
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there is no way to weld it together due to the design of the pulley/crank. The pulley has a flange and hole only big enough to get the bolt through.
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one of my friends works for a company that lkq bought out and he is gonna look for a low mile 6L, he gets sweet deals, what year and what not 6L should i look for?, i plan on keeping it boosted. to get me by im gonna get a balancer and try to pin it but i cant find a pin kit anywhere, any sugestions?
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http://www.atiracing.com/products/da...ex_ls1_pin.htm
Looks like it may be to put one or two pins in vertically to replace having a square broached slot along the length of the crank snout, not quite like how ATI and Magnuson do it with a dowel pin.
More like this one... http://www.ls1tech.com/forums/corvet...k-pin-kit.html
Page 36 in the Magnuson catalog has the PN for the pinning kit... http://www.magnusonproducts.com/pdf/catalog.pdf
This is on the ProCharger website... http://www.procharger.com/store/inde...ewCat&catId=19
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im leaning towards the ati kit, its cheaper than a new motor.
