Weld both sides. Grind and clean the crack 1/8 deep or more. Wire brush it with a stainless steel wire brush only. Do not grind the weld off. Pack a wet rag around the shaft area to keep it cool. After it is welded and I mean just after, take a water hose and flash cool the weld to temper it back to T6 temper.
And go have fun.
__________________
 Bob C.
Quickest, Fastest, Best selling Pontiac Aftermarket Block IA II and Tiger Heads
Boss Bird Funny Car
Best pass to date 08/06/2016 [email protected]
Allpontiac Big Chief Aluminum Engine Block
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