C3 French Locks on AC cars
This is a follow up to a previous post on this same subject and to capture the answer for others in the future. I have been able to verify on a 74' L82 4 speed that the exhaust bolts french locks are used at all 4 positions including under the AC bracket. The verification car has about 70K and is 100% unmolested in this area with 100% of the original emissions system parts, all of the factory heatshields and ignition shields in place and with the original exhaust manifolds.