I am real curious about that Victor head bolt dilemma. I was thinking of ordering a Ritter aluminum block, just talked to him last week. Maybe I’ll see what he says about it.
I would love to see some pictures of the aluminum block.
Stock LA head bolt pattern is fine for anything naturally aspirated. But, if I was building a “what if” engine with Victors on a Ritter block, I would want it turbo boosted to about 1500 horsepower, so extra clamping load would be nice.