I’m not sure how. While yes, there were some holes that lined, there were two or three on mine that were way off.
the other thing that is ABSOLUTELY critical, more so than the bolt pattern is the input shaft length. The lengths on those vary from LT1 to LS1 and across the other t56/tr6060 platforms(IE Ford, chevy, Dodge). Your input shaft length must be correct to make up thru the clutch and to the engine. Too short, you won’t be in the pilot bearing, too ling and you’ll never get it to mate up to the engine.
