Info Wanted - SCCA 2.96" Stroke Engine

I've seen articles that say Keith Black fabricated the 2.96" cranks from 4340 billet steel, that Mopar sold forged versions and there is a 3rd source that was said to be a crank manufacturer, but I can't recall the name. Regardless of the source, they were said to have 8 bolt crank flanges.

Same variety with rods - B-engine, Carillo & Mopar "Hemi footprint" rods.

Maybe @rumblefish360 can confirm one of the sources.