I have it behind my Pond aluminum 482" side oiler. Dimensionally your block and mine are identical. Make sure you dial it in during the install, V-E-R-Y important. Lakewood's web site has a good tech pub on the subject; they also have a good description of the bell housing under their "products" section. Mine was dead nutz on so I didn't have to mess with offset dowels and other such aggravations. Here's a pic of the assembly..
