Also called the 392 HEMI, it has larger cylinder diameters ... The Pontiac 455 used an engine block with 4.1525-inch cylinder ...
Its 392 cubic inches come from the cast iron engine block's 4.090-inch diameter cylinder bores and the crankshaft's 3.720-inch stroke. While not as powerful as the supercharged 6.2L HEMI crate ...