If youre referring to the clamping blocks that have brake, fuel feed/return and vent line channels, yes! Any idea on cost? I figured I would have to cast my own out of McMaster Carr urethane. For now I will just reuse the cracked stock clamps, but when I pull the motor and redo the undercoating I would be interested in replacing them all. I think the stock configuration is 5/16 fuel feed/return, 1/4" vent and 3/16" brake. I'd want 3/8" for the fuel feed and keep the rest the stock size.
Cheers,
Greg.