When you took it apart did any of the rod bolts seem loose? Something must have been loose to have the knock go away without changing any parts.
Everything was tight, checked converter bolts and flexplate before pulling. Glad knock is gone but really dont want to repull engine because of a possible dumb mistake.
That's correct, and the chances of a set of these rods just showing up in some random SBF is near zero due to what they cost back then. I rebuilt a hipo 289 in the early 70's that had 2 rods with spun bearings. Bought the 2 rods at the local Ford dealer. Part # C9ZZ-6200-B. hipo and boss rods are identical. List price back then about $90 each, and cost me $66 each. Equivalent to about $300 each in today's dollars.
Just think, today you can buy a whole set of **** Pro I-beam connecting rods for $300, and there really quite a stout piece to boot!
Yep. For the same discounted cost of 8 of those rods you could buy a 327/365hp long block ***embly straight across the counter at the local Chevy dealer. Not much mystery about why so many people built Chevys rather than Fords.
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