Quote:
Originally Posted by HoneyHush
I would skip the line bore on this engine. I would definitely skip the sonic testing too.
If it isn’t broken there’s no need to fix it. Ive seen a bunch of Pontiac’s get line honed and then start having bearing problems and especially timing chain issues.
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Align BORE and align HONE are two different machine processes. If an engine machinist removes enough material from the main saddle through an align hone to reduce bearing crush and lower the main saddle to cam bore clearance he needs to give up being an engine machinist. I’ve align bored and align honed hundreds of blocks. An align hone, properly performed, straightens the main saddle alignment. I have seen few blocks that couldn’t use a good align hone. Iron distorts over forty years of heating and cooling cycles.