Made in USA
Pro-Billet Front Drive Distributor Big Block Chevy
InfoVehicle Info Needed
MSD IGNITIONPART NUMBER: 121-8520

Pro-Billet Front Drive Distributor Big Block Chevy

$1,12395$1249.95You Save$126.00
ShippingShips on 09/04/2026
Lowest PriceLowest Price Guarantee

Front Drive Distributors
    Pro-Billet Front Drive Distributor
  • Big Block Chevy

    The Front Drive distributor is supplied with mounting bolts, cam pulley and drive belt.

    Features:
  • Standard size Ford-style cap features brass terminals and a wire retainer.
  • Wide, 9mm belt for the most secure operation.
  • Provisions for belt tension adjustments.
  • Must be used with an MSD Flying Magnet Crank Trigger and MSD 6, 7 or 8-Series Ignition Control
  • Not legal for use on pollution control vehicles
  • Must be used with a Jesel or Comp Cams Camshaft Belt Drive Kit

    Notes:
  • Will not fit raised cam big blocks such as Merlin, Donovan or Dart blocks
  • Will not fit Chevy Gen V or Gen VI blocks
  • Not legal for sale or use on pollution-controlled vehicles
  • Band clamp mount allows easy rotor phasing adjustment
  • The only front drive distributor with adjustable belt tension
  • The MSD Cap and Rotor are injection molded from strong DuPont Rynite material
  • Billet aluminum bracket and lower housing for strength
  • Supplied with cam gear, hardware and extra wide 9mm belt

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeDistributor
BrandMSD IGNITION
Package Height9.7
Package Width10.5
Package Length14.0
Weight5.03 PG
Part CategoryPerformance Parts
Marine UseNo
Housing FinishNatural
Housing MaterialBillet Aluminum
Distributor Cap ColorRed
Ignition Box RequiredYes
QuantitySold as a kit
Distributor TypeFront Drive
Engine Make/SizeChevy Big Block (396-502)
Computer-Controlled CompatibleNo
Trigger StyleMagnetic
Distributor Gear RotationStandard
Cap StyleMale/HEI
Part FitmentSemi Universal
Slip CollarNo
Mechanical Tach DriveNo
Advance TypeMechanical
Vendor Part Number8520
Package Qty1
Package TypeEA
No Questions
No Reviews

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Some parts are not legal for use in California or other states with similar laws / regulations
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