Originally Posted By parksr5
For what it's worth, I've had the 440 source high strength steel damper on my 470 for around three years and have not had any issues. Mainly for street use but, I've had it to the track a few times. I've shifted mine at or above 6000 a number of times and it used to go through the traps a little above 6000 but, most of the time it does not see that RPM.


Same here. Mine has been on my 505 for over a year but seen 3,500 hard street miles and lots of dragstrip passes. Rev limiter set at 6,400 rpm and usually shift close to that.

'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.