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Proform Parts 66980B - Proform Street/Strip HEI Distributors

  • Distributor, Street/Strip HEI, Magnetic Pickup, Vacuum Advance, Blue Cap, Ford, 351C, 351M, 400, 429, 460
  • Application Specific
  • Estimated Ship Date: Today
 
BrandProform Parts
Manufacturer's Part Number66980B
Part TypeDistributors
Product LineProform Street/Strip HEI Distributors
Summit Racing Part NumberPRO-66980B
UPC037995469802
 
Computer-Controlled CompatibleNo
Trigger StyleMagnetic
Advance TypeVacuum and mechanical
Cap StyleMale/HEI
Mechanical Tach DriveNo
Slip CollarNo
Gear MaterialSteel
Ignition Box RequiredNo
Distributor Rotor RotationCounterclockwise
Distributor Cap ColorBlue
Housing MaterialCast aluminum
Housing FinishNatural
QuantitySold individually.
NotesDistributor gear is compatible with factory roller cam. Distributor shaft diameter is 0.530 in.
Marine UseNo
 

Proform's Street/Strip HEI distributors have a variety of improvements over stock HEI distributors, such as a 50,000 V coil, a premium hi-dielectric cap with brass terminals, both upper and lower bushings for added durability, a low-saturation ignition module, and no voltage-reducing ballast resistors. These units offer calibrated advance curves that are optimized for maximum combustion efficiency, and the elimination of detonation damage and throttle ping. The distributors offer longer-term durability and a higher voltage spark that permits a bigger spark plug gap, resulting in more power and reduced plug fouling. The Ford models' internal coil and module make it possible for Blue Oval owners to avoid the unsightly wiring of stock Ford electronic ignitions. By eliminating the stock Ford or AMC ballast resistor, you'll get more ignition voltage, resulting in an improved spark. Another advantage to switching to HEI is access to easily-found HEI replacement parts. The Ford units are also assembled with upper and lower bushings, an upgrade from stock distributors that only have a single bushing. They're easy to install by connecting one 12 V hot wire to the distributor, making them a quick performance upgrade.

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