The 327 SBC used the 4.001-inch bore with a 3.25-inch stroke ... converting your 350-cubic inch SBC into a 383 stroker engine, including a 3.75-inch stroke cast-iron crankshaft (forged-steel ...

While there have been some iconic big-block engines over the last few decades, it's difficult to argue with the success of the small-block ... stroke with the same 4.125-inch cylinder bore.