5.7 inch stroke would be kinda British-like

The 153 was a 3.875 bore by 3.25 inch stroke motor. The rod length was the same as a small block and the rods are probably the same....why not just go ask the Chevy parts man to look it up? Also, the Mercury Marine 153 is the same with some higher quality parts.

Lots of them were used in dirt cars.