Serrated flanges are probably a good call. I've been running this setup with the lock washers for years without issue, but I'd like to avoid this potential problem in the future.
Looks like I had another one that was close to giving out in the similar spots. These are gold, so now I'm wondering if I did find grade 8 washers at the store after all. It's getting bad when I can't remember yesterday. Either way, doesn't really matter now.
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Ken
'68 GTO - 464 - Ram Air II heads - 236/242 roller - 9.5” TSP converter - Moser 3.55 Truetrac (
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walk around)
'74 Ventura 350
'69 AMC Javelin SST