I wait until they start banging and scraping against the timing cover! laugh2

I've had both an OEM and 440 Source go bad in the last few years. Both showed no signs of failure before coming apart.


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.