[Stefano]

It is part of the regular maintenance schedule. If the maintenance is not kept up, that is a major issue.

The 15k engine out and clutch repacement and service for a 355 F1 can run $20,000.00.

Cam belts and other items wear over time, when you have 4 cams opening and closing 40 valves at up to almost 8,500 rpms you want to be very safe!