If a 426 bore can fit on a 400 then can a 426 big bore fit a 400 aswell
With a 426 rod, yes-provided the kit comes with a new cylinder
A bore In kit probably wouldn't work-the 400 cylinder walls are fairly thin
I was meaning the kits that come with the bore and piston
Most kits are 3mm overbores to 95mm, which makes it a 426. You can also do the same thing by using a 426 piston and cylinder, rebuilding the crank with a 426 rod, or by using a 426 cylinder, and a piston from an '03-'09 450. It's a lot of work for a 6.5% increase in displacement.
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