Scat will make a custom forged with any stroke from 2.75" thru 3.50", I assume eagle-Lunati-Crower etc will do same. Any Forged/Steel crank for 289 @ 2.87" stroke will be aftermarket or cut down Boss/SVO 302 Forging ( 302 offset ground 0.125" to 2.875" stroke with 2.00" rod journal ( Small SBC ) or go all out to Honda journal 1.88".