Are you asking about the 331" engines that he used to use?

If you are, I can give you the benefit of an engine that I almost bought about 20 years ago.

It was a 9.30" deck, X block, 4 bolt mains, with a billet lifter bore fixture to yield about 48 degree bore angle. It used a billet Moldex 3.20" crank with a standard 4.040" bore to get the 331". The cam was Isky roller---about .700" lift with Norris rockers. Venolia dome pistons, Venolia aluminum rods---don't remember the rings.

The heads were Diamond aluminum W2s, standard type chamber, 2.12" intake X 1.60" exhaust, fully ported.

The intake was an Edelbrock 2 X 4 tunnel ram intake, with modified plenium, fully ported.

There were a couple of these engine for sale years ago in Chattanooga, TN---don't remember how they ended there. And I am sure he used different versions---there was a lot of R & D going on back then.