Stock Pontiac rods are quite durable. The rod bolts should be replaced when the rods are resized. Blaming a broken bolt on the rod is passing the buck.
Shortage? Not really...I have over 12 sets of Pontiac rods and 3 or 4 sets of pistons.
Sounds like a fun engine, but I question the heads being off a 350 and running on 87 octane on a 455.
Vikki 1969 Goldenrod Yellow / black 400 convertible numbers matching
