One thing I have never figured out about these rods is why they chose to make them out of the 8640 material that they did.
Even back then 4340 seemed to be the way to go.
In reading some of the above , I think that breakage below the pin would have been due to inflexibility of the 8640 material.
I have seen comments over the decades in regards to staying away from the A thru C batch rods, that is if your only running a 3.750” stroke and not buzzing over 6400.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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