Brake Calipers & Brake Pads

-Compound: BP-10
-Overall Width: 4.89"
-Overall Height: 2.56"
-Overall Thickness: .52"
-Sold in Quantity: Set
-Notes: Sold as a set of 4, 1 set will be needed to outfit 2 calipers.
-Bedded: No

Info
-Medium friction, smooth engagement, low abrasion on iron rotors.
-Flat torque curve.
-Low to medium wear rate, increases as temperature increases.
Features
Medium friction compound with the low noise and low dust of a street performance compound and the increased friction characteristics of a semi-metallic race compound.
Ideal for disc brake conversions on street rods and muscle cars.
High performance street / strip, drag race, and track day categories using vented iron rotors.
Smooth engagement with consistent response from a flat torque curve throughout its entire effective temperature range.

-Compound: BP-20
-Overall Width: 4.89"
-Overall Height: 2.56"
-Overall Thickness: .52"
-Sold in Quantity: Set
-Notes: Sold as a set of 4, 1 set will be needed to outfit 2 calipers.
-Bedded: No
Item Details
Medium friction, high temp rating, smooth engagement - torque increases with temp, moderate wear at high temp

Compound: PolyMatrix B
Quantity Included: 4
Overall Width: 4.89"
Overall Height: 2.56"
Overall Thickness: 0.52"
Sold in Quantity: Set
Pad Area: 8.7 sq. in.
Pad Volume: 2.9 cu. in.
Bedded: No

Info
Medium-high friction, good cold response
Gently rising torque curve, predictable engagemnet
Low wear rate at medium Temps, increasing to moderate at high Temp
Traditional favorite for asphalt LM's, modifieds, and sprints
Modifieds, late models, and other hard braking dirt applications
Intermediate weight road course, auto-cross, rally
Beds easily and fully compatible with all iron and steel

These all new cast, not rebuilt iron calipers are bolt-on replacements for 1978 and later GM Metric calipers widely used in "spec" racing categories and low cost disc brake conversions. Not IMCA pproved.

Wilwood iron GM Metric calipers combine new part quality with modern machining precision. There are two piston size options to assist builders with properly building static bias into a car. Previously, builders using the metric calipers generally had to mount the same size calipers on all four wheels. This drastically limited the tuning options and often created front to rear bias ratios that were not conducive to good handling and stability under hard braking. Some builders, and other brake suppliers, chose to offer re-machined OE calipers to provide a bias tuning option. Unfortunately re-machining a used casting that was never designed for the larger bore size, can create real compromises in strength, reliability and performance.

To address these needs, Wilwood has tooled up two separate castings that are fitted with either 2.75" or 2" stainless steel pistons and high temperature bore seals. Each casting is designed specific for its intended bore size. The calipers are strong and precise, without unnecessary added weight from oversized castings. The stainless steel pistons resist corrosion while helping to slow the heat transfer from the pads. The high temperature seals provide long service life when used in hard braking applications and maintain their resilience to provide positive piston retraction on release. In addition to the optional piston sizes, two models are available with slide pin vibration dampers installed to help reduce rattle and other noise.

These calipers are the same physical size and mounting as the GM metric style of calipers. Instead of the stock 2-1/2" piston they have either 2" or 2.75" bores. This allows you to change your brake bias on a dirt car by running bigger pistons on the back and small piston on the right front. The bleeder and inlet are both 10mm-1.5 which allows you to run these calipers on either side.

All Wilwood GM Metric calipers use the standard D154 type brake pads.

These all new cast, not rebuilt iron calipers are bolt-on replacements for 1978 and later GM Metric calipers widely used in "spec" racing categories and low cost disc brake conversions. Not IMCA pproved.

Wilwood iron GM Metric calipers combine new part quality with modern machining precision. There are two piston size options to assist builders with properly building static bias into a car. Previously, builders using the metric calipers generally had to mount the same size calipers on all four wheels. This drastically limited the tuning options and often created front to rear bias ratios that were not conducive to good handling and stability under hard braking. Some builders, and other brake suppliers, chose to offer re-machined OE calipers to provide a bias tuning option. Unfortunately re-machining a used casting that was never designed for the larger bore size, can create real compromises in strength, reliability and performance.

To address these needs, Wilwood has tooled up two separate castings that are fitted with either 2.75" or 2" stainless steel pistons and high temperature bore seals. Each casting is designed specific for its intended bore size. The calipers are strong and precise, without unnecessary added weight from oversized castings. The stainless steel pistons resist corrosion while helping to slow the heat transfer from the pads. The high temperature seals provide long service life when used in hard braking applications and maintain their resilience to provide positive piston retraction on release. In addition to the optional piston sizes, two models are available with slide pin vibration dampers installed to help reduce rattle and other noise.

These calipers are the same physical size and mounting as the GM metric style of calipers. Instead of the stock 2-1/2" piston they have either 2" or 2.75" bores. This allows you to change your brake bias on a dirt car by running bigger pistons on the back and small piston on the right front. The bleeder and inlet are both 10mm-1.5 which allows you to run these calipers on either side.

All Wilwood GM Metric calipers use the standard D154 type brake pads.

Wilwood's newest race caliper, the D154-R starts with a forged aluminum Type III hard anodized body with stainless steel piston. With a choice of 2.50” or 2.00” pistons and covering rotors from .81” to 1.04” thickness up to 12.19” diameter. Caliper fluid inlet port centered directly behind the piston eliminates any interference with slide pins. Lower deflection rate and higher volumetric efficiency than all the competitions’ heavier cast models, D154-R calipers with a 2.50" piston weighs only 3.3 pounds and use standard metric D154 pads. Caliper mounting uses stock height and offset.

Piston Count: 1
Piston Area (in²): 3.14
Piston Type: Stainless
Dust Boot: No
Rotor Width MAX (in): 1.04
Rotor Width MIN (in): 0.81
Rotor Diameter MAX (in): 12.19
Rotor Diameter MIN (in): 11.00
Pad Area (in²):8.7
Pad Volume (in³): 2.9
Material: Aluminum
Weight(Lbs): 3.4
Color: Gray
Finish: Type III Ano

Wilwood's newest race caliper, the D154-R starts with a forged aluminum black anodized body with stainless steel piston. Caliper fluid inlet port centered directly behind the piston eliminates any interference with slide pins. Lower deflection rate and higher volumetric efficiency than all the competitions’ heavier cast models, D154-R calipers with a 2.50" piston weighs only 3.3 pounds and use standard metric D154 pads. Caliper mounting uses stock height and offset.
Aluminum construction
Black anodized finish
Stainless steel piston
2.50" piston bore
Weighs 3.3 pounds
Caliper mounting uses stock height and offset
1/8" NPT Female inlet thread

Steel Clamp on Metric Caliper Bracket Fabricated. The clamp ring is 1" wide mount must be welded to the axle tube. . Available in left or right side brackets. Stronger than the competitors brake brackets!

Brake pad spaces for GM metric brake calipers. Made out of 6061 Aluminum extreme strong. Sold has a pair