Quote:
Originally Posted by KW Baraka
If you're talking about a stroked, 427ci LS3 or a LS7 engine (also 427ci) with ported GPI LS3 heads......no problem; they'll match.
On the other hand, the MSD intake will be for LS7 heads....LS3 heads will not work with that intake.
KW
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Yes, I have the GPI Max Performance heads (modified LS7 heads as I understand it) on my LS3. I'm wanting to stroke the LS3 block and turn it into a 427ci. I just wasn't sure if that could be done to my existing LS3 block or not, since most of the guys seem to be running 416, and I wasn't sure why that is.