ok...did a little research ...those are seal power pistons...they are the same as a trw 2316...

they are a 10.5 piston flat top...

Last edited by 70AARcuda; 08/09/11 06:06 PM.
Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)