4.350" stroke ?

I can't imagine it working in a stock block very easy. Even if you did make it work longevity would be seriously compromised. R3 tall deck, sure. If your gonna spend that much you might as well do a big block IMO.
> Tall as in 9.56"? This be std. deck. (2) "short" decks at 9 and 9.2". "Bragging Rights" are kinda like quoting your winnings at gambling, at what cost to brag ? Regarding super-jumbo strokes, just because you can, doesn't mean you should. With a rod ratio at approx 1.42/1, makes for a lot of side loads on the walls. More torque=more wear. I don't think a 4.35" arm in a "last bore" 340 prod. block, a wise choice. Maybe in a symese with SG iron ? IMO and WC ? :glasses9: