Generation IV Internal Engine - cost of boring out stock block to 355
08-15-2007, 05:43 PM
how much should it cost to bore out my stock ls1 block .30 over and also what is a decent price for some good pistons? on a budget here.
08-15-2007, 06:44 PM
08-16-2007, 03:24 PM
you cant bore an ls1 to 355. it starts life as a 346. the most ive seen is a 348 which is something like a .010 or .020 overbore
08-16-2007, 03:32 PM
The max a LS1 or LS6 block can be overbored to is 3.905".
08-16-2007, 06:57 PM
^347 is the max safe bore on a stock sleeved block
08-17-2007, 07:19 AM
i think you can go 3.91" for a 348 but i would just stick with 3.905" 347 myself .
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