Polymatrix Brake Pads Wilwood friction pads are manufac- tured for drag racing. In general, soft sticky
ULHP Straight Vane Rotors Long grain carbon iron ULHP straight vane rotors have long wear, high thermal stability and superior heat resistance. All machined surfaces have less than .001" variation in flatness, parallelism and run-out. Part No. Description
pads that work best in a low to medium temperature range are best suited for drag and pro street cars. Medium pads can handle high temperature extremes and wear longer without fade. Polymatrix “B” Compound A race only, medium-high friction brake compound with good cold response. The friction curve gently rises as temperature increases. A long wearing pad in middle temperature ranges with moderate wear in sustained high heat conditions. When high mile per hour fade has occurred with lower temp pads, this is the pad to use. Polymatrix “E” Compound Designed for drag cars with iron or steel brake rotors. Medium friction compound delivers the best overall wear characteristics in the medium temperature range, offering smooth engagement, consistent response and a flat torque curve throughout the range. Polymatrix “Q” Compound “Q” compound is an enhanced friction ceramic that reduces dust and noise, and improves stopping power through smooth engagement and increased fade resistance. Compound recovers quickly and lasts a long time. BP-10 “Smart Pads” Compound A street/strip compound that combines low dust and noise with the increased friction of a semi-metallic racing compound. Char- acteristics include good low to middle temperature wear rates, smooth engagement, consistent response and a flat torque curve throughout temperature range.
Dia. Width Bolt Circle Hole Type WIL160-5839** HD Drag Race Front Rotor 10.75" .81" 6 x 6.25" .325" WIL160-5844 † HD Pro Series Rear Rotor 12.19" .81" 8 x 7.62" 5/16"-24 ** Replacement rotor for all heavy duty drag race front brake kits, except WIL140-3425 or WIL140-4304. † Replacement rotor for all heavy duty pro series drag race rear axle brake kits.
Standard Hole Mount Steel Rotors Steel rotors are for drag race use where tem- peratures are low to moderate and high heat spikes occur on an intermittent basis. Standard hole mount rotors are offered in solid or light- weight drilled versions and are often directly attached to mounting hats or mounting plates. Part No. Description
Dia. Width Bolt Circle Hole Type 11.44" .35" 8 x 7.00" .325" 11.44" .35" 8 x 7.00" .325"
WIL160-0201 †† WIL160-1601 †† WIL160-1602
Solid, Rear Axle Rotor Drilled, Rear Axle Rotor Drilled, Front Rotor
10.00" .250" 5 x 5.00" .391" WIL160-2182 § Drilled Light Duty, Front Rotor 10.00" .32" 5 x 3.88" .391" WIL160-3305 §§ Solid Med. Duty, Front Rotor 10.75" .35" 6 x 6.25" .316" WIL160-3306 §§ Drilled Med. Duty, Front Rotor 10.75" .35" 6 x 6.25" .316" †† Replacement rotor for all drag race rear axle brake kits. § Replacement rotor for light duty drag race front brake kit WIL140-1012. §§ Replacement rotor for all medium duty drag race front brake kits except WIL140-4271. Also may be used as replacement for WIL140-4399. GT Series Shallow Offset Disc Mounting Hats
Polymatrix “B”
Polymatrix “E”
Polymatrix “Q”
BP-10 “Smart Pads”
Description
Precision machined from premium quality alumi- num for high strength and minimum weight, hats include threaded rotor mounting holes for use with standard through-hole mount rotors. Shallow Offset drag hats are designed for narrow space applica- tions with offsets less than 1.00”. Part No. Description WIL170-10041 Fixed Mount Disc Mounting Hats Ultralight aluminum hats are machined for weight reduction and available in offsets and bolt patterns for most race cars. Also available with no holes for custom bolt circles. WIL170-10782
GM D52, GM II/III Dynalite Billet Spot
WIL15B-3994K WIL15E-6102K
— WIL150-8939K — WIL150-8936K
GM Metric D154 WIL15B-3998K WIL15E-6103K
WIL15B-3991K WIL15E-6096K WIL15Q-6824K WIL150-8850K — WIL150-1251K DynaPro Single WIL15B-9819K WIL15E-9820K WIL15Q-10144K WIL150-9764K DynaPro Lug Mount WIL15B-9836K WIL15E-9837K — WIL150-9136K Superlite WIL15B-3992K WIL15E-6100K — WIL150-8856K Caliper Shims — —
Mustang, 5 x 4.50”, 8 x 7.00”, 1.23” Offset
5 x 4.50”, 8 x 7.00”, 1.59” Offset, 2.783” Register Dia.
Use to adjust calipers for proper clear- ance with the rotors. Sold in packs of ten. Part No. Description WIL240-4384 0.032" Thick, 3/8" ID Hole, Ten WIL240-4385 0.032" Thick, 7/16" ID Hole, Ten WIL240-4386 0.063" Thick, 7/16" ID Hole, Ten WIL240-4387 0.015" Thick, 7/16" ID Hole, Ten Caliper Bolt WIL230-0542
Bolt Circle Dia. Holes
Part No. Hole Dia. WIL170-0176 Camaro 7.62" 8 5/16"-24 4.75" 5 .51" 1.50" 2.85" WIL170-0208 Olds/ Pontiac 7.00" 8 5/16" Thru 4.5"/ 4.75"/5" 15 .52" 1.96" 3.06" WIL170-0259 Ford/ Chrysler 7.00" 8 5/16" Thru 4.5"/ 4.75"/5" 15 .52" 1.71" 3.06" WIL170-0317 Ford/ Chrysler 7.00" 8 5/16" Thru 4.5"/ 4.75"/5" 15 .52" 1.59" 3.06" WIL170-0764 Ford/ Chrysler 7.00" 8 5/16" Thru 4.5"/ 4.75"/5" 15 .52" 1.41" 3.06" WIL170-1827 Pro Street 7.62" 8 5/16"-24 4.5"/ 4.75"/5" 15 .52" 2.00" 3.06" WIL171-2234 Ford/ Chrysler 7.00" 8 5/16" Thru No Bolt Holes N/A N/A 1.41" 2.78" WIL170-3265 Mustang 7.62" 8 5/16"-24 4.5" 5 .52" 1.25" 3.06" WIL171-3755 Ford/ Chrysler 7.00" 8 5/16" Thru No Bolt Holes N/A N/A 1.59" 3.06" NOTE: See diagram on previous page to determine proper application and offset. Model Mtg. Type Bolt Circle Stud Holes Stud Dia. Hat Offset
Sliding-type bolts for GM style calipers. The 7/16"-14 bolt is sold individually. Caliper Fittings Quality caliper fittings are designed to fit and work the first time. Part No. Description WIL220-0627 Bleed Screw Assembly, Pack Of Four WIL220-0628 Tube Adapt, Pack Of Four Rotor Bolt Kits Bolt kits for fastening rotors to disc mounting hats. Part No. Description WIL230-0150
Socket Head, Threaded Rotors, (8) 5/16"-24 x .750" Short Profile Hex, Drag Race Rear Axle Kits Using Thru Bolt Hat, (8) 5/16"-18 x .750"
WIL230-0233D
655
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