Inliners International Forums General Discussion Hi Performance 292 crank in 250 - cylinder wall issues?

1.313 CH 3.898 bore pistons

250 crank, 1.756 stroke, 6" rods, 9.078"
292 crank, 2.06 stroke, 5.7" rods, 9.073"

IIRC factory deck is 9.15 +/-.007" CH. So at min spec, with a .038 gasket, you'd be right in there.

problem is these are slipper skirt design. So my question was if the cylinder failure noted in the 292's was seen in 250's, particularly if running a 292 crank (I would think yes, but haven't built one to try....).