So, since the marine engines are tall deck, what does that mean for the stroker combo? Can I get more stroke out of it?


Quote Originally Posted by erik erikson
To build the 489/496 you also have to add the 4.25 stroke crank.
The 489/496 is built using the low deck 454 block.
The low deck height is 9.80,the tall deck height is 10.20.