Wilwood Forged Superlite Internal 4 Caliper - 1.88", 1.75" Piston Diameter, 1.250" Rotor Thickness - RH Rear Side Mount Intercom Headsets 1973-1981 Buick Regal

1973-1981 Buick Regal

1330 to S44 Series

(2) accelerator pump diaphragms

The carburetor is unaffected by engine backfires

Built in scraper quickly removes oil from rotating assembly

Wilwood Forged Superlite Internal 4 Caliper - 1.88", 1.75" Piston Diameter, 1.250" Rotor Thickness - RH Rear Side Mount Intercom Headsets 1973-1981 Buick RegalFSLI4 and FSLI4 ST calipers provide the pad wear performance advantages of differential bore pistons with the option for ultimate heat protection using Thermlock pistons in the ST models. Differential piston bores compensate for leading edge mechanical loading and temperature variances across the pad face to reduce pad taper wear in sustained high temperature applications. Thermlock pistons in the ST models block heat transfer from the pads and reduce