I’d have to look for the info but those rods were made I. Batches of 2500 at a time and sold over the counter. Not as strong as a SD455 rod , definitely not as staring as an aftermarket eagle or something like that. Rockwell hardness isn’t that n
High . BUT they did make them
In 69 also aswhat Mc carthy called the mystery Rod and stock racers who knew about it used them.
My 69 bird raced by Stephen used these rods
They were considered by Pontiac a service replacement rod is what bill said I have a set that came out of my service replacement RAIV engine that stephens had for the car and a freind of mine bought from them back inthe early 70s after the car had been sold. I also have a small article in one of the magazines I. 69 talking about how they still make them in batches of 2500 for racers in the know Hard to know if these are the 69 version or the original early rod or if there was any difference in them at all
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