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  1. Disc brake pads for early Fords with Granada brakes - R4-S
  2. Disc brake pads for early Fords with Lincoln calipers - R4
  3. Porterfield 10 x 1-3/4 Drum brake shoes - R4-S
  4. Disc brake pads for early Fords with small Kelsey Hayes calipers - R4-S
  5. Disc brake pads for 68-73 Mustangs with stock disc brakes - R4-S
 


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  Street or Track LLC :: Brakes :: Disc Brakes :: Pads & Shoes :: Porterfield Brake Pads :: Disc brake pads for early Fords with small Kelsey Hayes calipers - R4

Disc brake pads for early Fords with small Kelsey Hayes calipers - R4
Disc brake pads for early Fords with small Kelsey Hayes calipers - R4  Designed specifically for heavy duty motorsports, the Porterfield R-4 brake pad is able to maintain an average friction level of .50 within a very wide temperature range. Using the latest in ceramic technology, the carbon based semi-metallic R4 materials allow the pad to absorb tremendous amounts of heat and dissipate it at a very even rate, while at the same time insulating excessive heat from the calipers. Another inherent characteristic is the carbon kevlar material warms up to race temperature very quickly. Optimum R-4 operating temperatures are 450F and above. Throughout the entire heat range, the carbon kevlar material will give extremely consistent modulation and predictably smooth release characteristics up to threshold.

Not recommend for street use!

Front for:
FORD: 65-66 Mustang w/Front Discs, 67 Mustang w/Front Discs exc. 428 V8, 67 Mustang 428 V8 w/Front Discs
MERCURY: 67 Cougar 289 V8 w/Front Discs/390 V8 w/Front Discs

Set of 4 Pieces

Details
 
Part Number: POR-APD-11R4
Price: $135.95

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Related Items
Porterfield 10 x 1-3/4 Drum brake shoes - R4-S  Porterfield 10 x 1-3/4 Drum brake shoes - R4-S $109.00
Porterfield 10 x 2-1/2 Drum brake shoes - R4-S  Porterfield 10 x 2-1/2 Drum brake shoes - R4-S $109.00
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