I saw one of the Sox and Martin SS/A cars in the tear down barn at the 1974 NHRA Winternationals , Jake King had removed the stock castings around the pushrod tubes in the block and heads. Where is the surprised Imogy, help!
I had to grind the KB aluminum street hemi block on three of the 7/16 single tapered exhaust pushrod in the stock machined grooves in that block, all the others cleared fine.
Mock up and check every part up before final assembly on every Hemiroid motor !