melsie68

iTrader: (8)

How far can a 6.0L (LQ4/LQ9) iron truck block typically be bored safely? I am wondering what the limits are because I have heard many different things. I am talking about fairly well built N/A engine with good heads and cam. Thanks.

NemeSS

iTrader: (127)

of course sonic testing will be required to confirm the block can take it.
but my engine is a 375ci .060 over lq4
put down 490 to the wheels, 7k rpm, around 9k miles on it now.
not even forged pistons, stock rods, crank. oe 243 heads.
few others ive built same dimensions .04-.06 bore
no probs. whatso ever.
to date