Stroke of a 383 in 3.375, 318 & 340 are 3.31, and the 360 is 3.58. The 383 has a shorter stroke than the small block 360. I drove many old Dodge trucks with 360 and 4.10 gears with 30 inch tires. We had one that made multiple trips from Michigan to Arizona it would sing on the highway and only...