Forged Dynapro Rear Brake Kit - 4-Piston 12.19" WB140-12420-D Stroud Power valve blow-out protection 100%

Power valve blow-out protection 100% wet-flow tested by Holley technicians to assure it arrives ready to run

We say what we mean and mean what we say

Model 4150HP design Designed for use on the WEIAND 671 supercharger (big block Chevrolet/Chrysler 392) Designed for use on the WEIAND 871 supercharger (small block Chevrolet/Chrysler 426) Four-corner idle system Replaceable air bleeds Dual 30cc accelerator pumps Shiny Finish Mechanical secondary Boost referenced power valve Throttle lever cut off for clearance on a sideways application

They also feature tapered runners for increased flow at high rpm

while also increasing bearing life

Forged Dynapro Rear Brake Kit - 4-Piston 12.19" WB140-12420-D Stroud Power valve blow-out protection 100%Forged Dynapro Rear Brake Kit 4 Piston 12. 19"Suit Strange Street Floater Kit F5010 With Internal Park Brake WB140 12420 D 140 12420 D This group of FDL Pro Series rear disc kits provides a complete solution for popular muscle car rear axles that require a parking brake. Forged billet Dynalite four piston calipers, 12. 19" one piece drum rotors, and high friction pads provide optimized and balanced braking for all types of custom performance street