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Product details
Wilwood's blank Pro-Street hat uses a through-hole 8 x 7.62-inch rotor interface. Verify 2.000-inch offset and machine the hub flange to suit. Bill Wood’s 1977 founding of Wilwood Engineering began a disc brake design and manufacturing business based in Camarillo, California. The range includes master cylinders, calipers, rotors, brake lines, valves and fittings for motorsport, street-performance and specialized vehicles. Component selection must consider the complete braking arrangement.
Technical Details
- Manufacturer part number: 171-2233
- Surface finish: Black E-Coat
- Rotor mounting method: Fixed Mount
- Hat offset: 2.000 inch
- Rotor attachment interface: 8 x 7.62 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): Blank — flange requires machining
- Center register diameter: 3.06 inches
- Rotor mounting hole/thread designation: .323
- Internal clearance diameter: 6.50 inches
- Mounting-face thickness: 0.25 inches
- Manufacturer-listed attachment hardware reference: 230-0150; verify the specific rotor and attachment arrangement before ordering hardware
- Manufacturer installation note: 3.06" diameter register with counterbore for register ring.
- Component: Pro-Street Brake Rotor Hat
- Material: Aluminum
Fitment & Compatibility
Check the existing Custom Pro-Street brake systems against the dimensions above. The hub flange and rotor attachment are separate interfaces and both must match the intended brake package. The blank hub flange is not ready to bolt on. Have a qualified machinist verify the drilling layout, register and finished mounting surfaces for the intended assembly.
Manufacturer Reference
Wilwood component specifications and dimensions
PMB Performance can help identify the required brake component with over 20 years of parts experience. Send the kit details and original-part measurements.
