I was looking through the Summit Racing catalog; there might be parts shared with V8 engines. I noticed similarities regarding the hydraulic lifters (same diameter) and piston rings, and possibly the valve springs. I'm currently trying to find information on the crankshaft bearings—specifically, metric dimensions for the main bearings and imperial (inch) sizes for the connecting rod bearings.
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for V6 and V8
https://www.summitracing.com/parts/mel-jb-7003

https://www.summitracing.com/parts/hrs-91120

https://www.summitracing.com/parts/cxm-ls039111102

https://www.summitracing.com/parts/hrs-91113fb

https://www.summitracing.com/parts/slp-ht-2279

https://www.summitracing.com/parts/mel-jb-2079

They all have the same 0.842-inch diameter as the X-Wedge; the height without the roller is 53.4 mm (56.6 mm with the roller), and the ground height for sliding contact is 38.5 mm.